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CVE-2025-47774 (GCVE-0-2025-47774)

Vulnerability from cvelistv5 – Published: 2025-05-15 17:38 – Updated: 2025-05-15 18:33

Title

Vyper's `slice()` may elide side-effects when output length is 0

Summary

Vyper is the Pythonic Programming Language for the Ethereum Virtual Machine. In versions up to and including 0.4.2rc1, the `slice()` builtin can elide side effects when the output length is 0, and the source bytestring is a builtin (`msg.data` or `<address>.code`). The reason is that for these source locations, the check that `length >= 1` is skipped. The result is that a 0-length bytestring constructed with slice can be passed to `make_byte_array_copier`, which elides evaluation of its source argument when the max length is 0. The impact is that side effects in the `start` argument may be elided when the `length` argument is 0, e.g. `slice(msg.data, self.do_side_effect(), 0)`. The fix in pull request 4645 disallows any invocation of `slice()` with length 0, including for the ad hoc locations discussed in this advisory. The fix is expected to be part of version 0.4.2.

Severity ?

2.9 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

CWE

CWE-691 - Insufficient Control Flow Management

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/pull/4645	x_refsource_MISC
	https://github.com/vyperlang/vyper/blob/68b68c4b3…	x_refsource_MISC
	https://github.com/vyperlang/vyper/blob/68b68c4b3…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: <= 0.4.2rc1

Show details on NVD website

JSON

To clipboard

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CVE-2025-47285 (GCVE-0-2025-47285)

Vulnerability from cvelistv5 – Published: 2025-05-15 17:24 – Updated: 2025-05-15 18:37

Title

Vyper's `concat()` builtin may elide side-effects for zero-length arguments

Summary

Vyper is the Pythonic Programming Language for the Ethereum Virtual Machine. In versions up to and including 0.4.2rc1, `concat()` may skip evaluation of side effects when the length of an argument is zero. This is due to a fastpath in the implementation which skips evaluation of argument expressions when their length is zero. In practice, it would be very unusual in user code to construct zero-length bytestrings using an expression with side-effects, since zero-length bytestrings are typically constructed with the empty literal `b""`; the only way to construct an empty bytestring which has side effects would be with the ternary operator introduced in v0.3.8, e.g. `b"" if self.do_some_side_effect() else b""`. The fix is available in pull request 4644 and expected to be part of the 0.4.2 release. As a workaround, don't have side effects in expressions which construct zero-length bytestrings.

Severity ?

2.9 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

CWE

CWE-691 - Insufficient Control Flow Management

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/pull/4644	x_refsource_MISC
	https://github.com/vyperlang/vyper/blob/68b68c4b3…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: <= 0.4.2rc1

Show details on NVD website

JSON

To clipboard

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CVE-2025-26622 (GCVE-0-2025-26622)

Vulnerability from cvelistv5 – Published: 2025-02-21 21:36 – Updated: 2025-02-22 15:34

Title

sqrt doesn't define rounding behavior in Vyper

Summary

vyper is a Pythonic Smart Contract Language for the EVM. Vyper `sqrt()` builtin uses the babylonian method to calculate square roots of decimals. Unfortunately, improper handling of the oscillating final states may lead to sqrt incorrectly returning rounded up results. This issue is being addressed and a fix is expected in version 0.4.1. Users are advised to upgrade as soon as the patched release is available. There are no known workarounds for this vulnerability.

Severity ?

2.3 (Low)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CWE

CWE-682 - Incorrect Calculation

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/pull/4486	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: < 0.4.1

Show details on NVD website

JSON

To clipboard

{
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CVE-2025-27104 (GCVE-0-2025-27104)

Vulnerability from cvelistv5 – Published: 2025-02-21 21:32 – Updated: 2025-02-22 15:35

Title

double eval in For List Iter in Vyper

Summary

vyper is a Pythonic Smart Contract Language for the EVM. Multiple evaluation of a single expression is possible in the iterator target of a for loop. While the iterator expression cannot produce multiple writes, it can consume side effects produced in the loop body (e.g. read a storage variable updated in the loop body) and thus lead to unexpected program behavior. Specifically, reads in iterators which contain an ifexp (e.g. `for s: uint256 in ([read(), read()] if True else [])`) may interleave reads with writes in the loop body. Vyper for loops allow two kinds of iterator targets, namely the `range()` builtin and an iterable type, like SArray and DArray. During codegen, iterable lists are required to not produce any side-effects (in the following code, `range_scope` forces `iter_list` to be parsed in a constant context, which is checked against `is_constant`). However, this does not prevent the iterator from consuming side effects provided by the body of the loop. For SArrays on the other hand, `iter_list` is instantiated in the body of a `repeat` ir, so it can be evaluated several times. This issue is being addressed and is expected to be available in version 0.4.1. Users are advised to upgrade as soon as the patched release is available. There are no known workarounds for this vulnerability.

Severity ?

2.3 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CWE

CWE-662 - Improper Synchronization

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/pull/4488	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: < 0.4.1

Show details on NVD website

JSON

To clipboard

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        }
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CVE-2025-27105 (GCVE-0-2025-27105)

Vulnerability from cvelistv5 – Published: 2025-02-21 21:27 – Updated: 2025-02-22 15:37

Title

AugAssign evaluation order causing OOB write within the object in Vyper

Summary

vyper is a Pythonic Smart Contract Language for the EVM. Vyper handles AugAssign statements by first caching the target location to avoid double evaluation. However, in the case when target is an access to a DynArray and the rhs modifies the array, the cached target will evaluate first, and the bounds check will not be re-evaluated during the write portion of the statement. This issue has been addressed in version 0.4.1 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Severity ?

2.3 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CWE

CWE-787 - Out-of-bounds Write

Assigner

GitHub_M

References

URL

Tags

https://github.com/vyperlang/vyper/security/advis…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: < 0.4.1

Show details on NVD website

JSON

To clipboard

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CVE-2025-21607 (GCVE-0-2025-21607)

Vulnerability from cvelistv5 – Published: 2025-01-14 17:32 – Updated: 2025-04-24 14:39

Title

Success of Certain Precompile Calls not Checked in Vyper

Summary

Vyper is a Pythonic Smart Contract Language for the EVM. When the Vyper Compiler uses the precompiles EcRecover (0x1) and Identity (0x4), the success flag of the call is not checked. As a consequence an attacker can provide a specific amount of gas to make these calls fail but let the overall execution continue. Then the execution result can be incorrect. Based on EVM's rules, after the failed precompile the remaining code has only 1/64 of the pre-call-gas left (as 63/64 were forwarded and spent). Hence, only fairly simple executions can follow the failed precompile calls. Therefore, we found no significantly impacted real-world contracts. None the less an advisory has been made out of an abundance of caution. This issue is fixed in 0.4.1.

Severity ?

2.3 (Low)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CWE

CWE-670 - Always-Incorrect Control Flow Implementation

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/pull/4451	x_refsource_MISC
	https://github.com/vyperlang/vyper/commit/7136eab…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: < 0.4.1

Show details on NVD website

JSON

To clipboard

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CVE-2024-32649 (GCVE-0-2024-32649)

Vulnerability from cvelistv5 – Published: 2024-04-25 17:53 – Updated: 2024-08-02 02:13

Title

vyper performs double eval of the argument of sqrt

Summary

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the `sqrt` builtin can result in double eval vulnerability when the argument has side-effects. It can be seen that the `build_IR` function of the `sqrt` builtin doesn't cache the argument to the stack. As such, it can be evaluated multiple times (instead of retrieving the value from the stack). No vulnerable production contracts were found. Additionally, double evaluation of side-effects should be easily discoverable in client tests. As such, the impact is low. As of time of publication, no fixed versions are available.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

Assigner

GitHub_M

References

URL

Tags

https://github.com/vyperlang/vyper/security/advis…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: <= 0.3.10

Show details on NVD website

JSON

To clipboard

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CVE-2024-32648 (GCVE-0-2024-32648)

Vulnerability from cvelistv5 – Published: 2024-04-25 17:48 – Updated: 2024-08-02 02:13

Title

vyper default functions don't respect nonreentrancy keys

Summary

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. Prior to version 0.3.0, default functions don't respect nonreentrancy keys and the lock isn't emitted. No vulnerable production contracts were found. Additionally, using a lock on a `default` function is a very sparsely used pattern. As such, the impact is low. Version 0.3.0 contains a patch for the issue.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-667 - Improper Locking

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/issues/2455	x_refsource_MISC
	https://github.com/vyperlang/vyper/commit/93287e5…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: < 0.3.0

Show details on NVD website

JSON

To clipboard

{
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CVE-2024-32647 (GCVE-0-2024-32647)

Vulnerability from cvelistv5 – Published: 2024-04-25 17:41 – Updated: 2024-08-02 02:13

Title

vyper performs double eval of raw_args in create_from_blueprint

Summary

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the `create_from_blueprint` builtin can result in a double eval vulnerability when `raw_args=True` and the `args` argument has side-effects. It can be seen that the `_build_create_IR` function of the `create_from_blueprint` builtin doesn't cache the mentioned `args` argument to the stack. As such, it can be evaluated multiple times (instead of retrieving the value from the stack). No vulnerable production contracts were found. Additionally, double evaluation of side-effects should be easily discoverable in client tests. As such, the impact is low. As of time of publication, no fixed versions exist.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/blob/cedf7087e…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: <= 0.3.10

Show details on NVD website

JSON

To clipboard

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CVE-2024-32646 (GCVE-0-2024-32646)

Vulnerability from cvelistv5 – Published: 2024-04-25 17:21 – Updated: 2024-08-02 02:13

Title

vyper performs double eval of the slice args when buffer from adhoc locations

Summary

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the `slice` builtin can result in a double eval vulnerability when the buffer argument is either `msg.data`, `self.code` or `<address>.code` and either the `start` or `length` arguments have side-effects. It can be easily triggered only with the versions `<0.3.4` as `0.3.4` introduced the unique symbol fence. No vulnerable production contracts were found. Additionally, double evaluation of side-effects should be easily discoverable in client tests. As such, the impact is low. As of time of publication, no fixed versions are available.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-20 - Improper Input Validation

Assigner

GitHub_M

References

URL

Tags

https://github.com/vyperlang/vyper/security/advis…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: <= 0.3.10

Show details on NVD website

JSON

To clipboard

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CVE-2024-32645 (GCVE-0-2024-32645)

Vulnerability from cvelistv5 – Published: 2024-04-25 17:18 – Updated: 2024-08-02 02:13

Title

vyper performs incorrect topic logging in raw_log

Summary

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, incorrect values can be logged when `raw_log` builtin is called with memory or storage arguments to be used as topics. A contract search was performed and no vulnerable contracts were found in production. The `build_IR` function of the `RawLog` class fails to properly unwrap the variables provided as topics. Consequently, incorrect values are logged as topics. As of time of publication, no fixed version is available.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-20 - Improper Input Validation

Assigner

GitHub_M

References

URL

Tags

https://github.com/vyperlang/vyper/security/advis…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: <= 0.3.10

Show details on NVD website

JSON

To clipboard

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CVE-2025-47774 (GCVE-0-2025-47774)

Vulnerability from nvd – Published: 2025-05-15 17:38 – Updated: 2025-05-15 18:33

Title

Vyper's `slice()` may elide side-effects when output length is 0

Summary

Vyper is the Pythonic Programming Language for the Ethereum Virtual Machine. In versions up to and including 0.4.2rc1, the `slice()` builtin can elide side effects when the output length is 0, and the source bytestring is a builtin (`msg.data` or `<address>.code`). The reason is that for these source locations, the check that `length >= 1` is skipped. The result is that a 0-length bytestring constructed with slice can be passed to `make_byte_array_copier`, which elides evaluation of its source argument when the max length is 0. The impact is that side effects in the `start` argument may be elided when the `length` argument is 0, e.g. `slice(msg.data, self.do_side_effect(), 0)`. The fix in pull request 4645 disallows any invocation of `slice()` with length 0, including for the ad hoc locations discussed in this advisory. The fix is expected to be part of version 0.4.2.

Severity ?

2.9 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

CWE

CWE-691 - Insufficient Control Flow Management

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/pull/4645	x_refsource_MISC
	https://github.com/vyperlang/vyper/blob/68b68c4b3…	x_refsource_MISC
	https://github.com/vyperlang/vyper/blob/68b68c4b3…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: <= 0.4.2rc1

Show details on NVD website

JSON

To clipboard

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CVE-2025-47285 (GCVE-0-2025-47285)

Vulnerability from nvd – Published: 2025-05-15 17:24 – Updated: 2025-05-15 18:37

Title

Vyper's `concat()` builtin may elide side-effects for zero-length arguments

Summary

Vyper is the Pythonic Programming Language for the Ethereum Virtual Machine. In versions up to and including 0.4.2rc1, `concat()` may skip evaluation of side effects when the length of an argument is zero. This is due to a fastpath in the implementation which skips evaluation of argument expressions when their length is zero. In practice, it would be very unusual in user code to construct zero-length bytestrings using an expression with side-effects, since zero-length bytestrings are typically constructed with the empty literal `b""`; the only way to construct an empty bytestring which has side effects would be with the ternary operator introduced in v0.3.8, e.g. `b"" if self.do_some_side_effect() else b""`. The fix is available in pull request 4644 and expected to be part of the 0.4.2 release. As a workaround, don't have side effects in expressions which construct zero-length bytestrings.

Severity ?

2.9 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

CWE

CWE-691 - Insufficient Control Flow Management

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/pull/4644	x_refsource_MISC
	https://github.com/vyperlang/vyper/blob/68b68c4b3…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: <= 0.4.2rc1

Show details on NVD website

JSON

To clipboard

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CVE-2025-26622 (GCVE-0-2025-26622)

Vulnerability from nvd – Published: 2025-02-21 21:36 – Updated: 2025-02-22 15:34

Title

sqrt doesn't define rounding behavior in Vyper

Summary

vyper is a Pythonic Smart Contract Language for the EVM. Vyper `sqrt()` builtin uses the babylonian method to calculate square roots of decimals. Unfortunately, improper handling of the oscillating final states may lead to sqrt incorrectly returning rounded up results. This issue is being addressed and a fix is expected in version 0.4.1. Users are advised to upgrade as soon as the patched release is available. There are no known workarounds for this vulnerability.

Severity ?

2.3 (Low)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CWE

CWE-682 - Incorrect Calculation

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/pull/4486	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: < 0.4.1

Show details on NVD website

JSON

To clipboard

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CVE-2025-27104 (GCVE-0-2025-27104)

Vulnerability from nvd – Published: 2025-02-21 21:32 – Updated: 2025-02-22 15:35

Title

double eval in For List Iter in Vyper

Summary

vyper is a Pythonic Smart Contract Language for the EVM. Multiple evaluation of a single expression is possible in the iterator target of a for loop. While the iterator expression cannot produce multiple writes, it can consume side effects produced in the loop body (e.g. read a storage variable updated in the loop body) and thus lead to unexpected program behavior. Specifically, reads in iterators which contain an ifexp (e.g. `for s: uint256 in ([read(), read()] if True else [])`) may interleave reads with writes in the loop body. Vyper for loops allow two kinds of iterator targets, namely the `range()` builtin and an iterable type, like SArray and DArray. During codegen, iterable lists are required to not produce any side-effects (in the following code, `range_scope` forces `iter_list` to be parsed in a constant context, which is checked against `is_constant`). However, this does not prevent the iterator from consuming side effects provided by the body of the loop. For SArrays on the other hand, `iter_list` is instantiated in the body of a `repeat` ir, so it can be evaluated several times. This issue is being addressed and is expected to be available in version 0.4.1. Users are advised to upgrade as soon as the patched release is available. There are no known workarounds for this vulnerability.

Severity ?

2.3 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CWE

CWE-662 - Improper Synchronization

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/pull/4488	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: < 0.4.1

Show details on NVD website

JSON

To clipboard

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CVE-2025-27105 (GCVE-0-2025-27105)

Vulnerability from nvd – Published: 2025-02-21 21:27 – Updated: 2025-02-22 15:37

Title

AugAssign evaluation order causing OOB write within the object in Vyper

Summary

vyper is a Pythonic Smart Contract Language for the EVM. Vyper handles AugAssign statements by first caching the target location to avoid double evaluation. However, in the case when target is an access to a DynArray and the rhs modifies the array, the cached target will evaluate first, and the bounds check will not be re-evaluated during the write portion of the statement. This issue has been addressed in version 0.4.1 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Severity ?

2.3 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CWE

CWE-787 - Out-of-bounds Write

Assigner

GitHub_M

References

URL

Tags

https://github.com/vyperlang/vyper/security/advis…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: < 0.4.1

Show details on NVD website

JSON

To clipboard

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CVE-2025-21607 (GCVE-0-2025-21607)

Vulnerability from nvd – Published: 2025-01-14 17:32 – Updated: 2025-04-24 14:39

Title

Success of Certain Precompile Calls not Checked in Vyper

Summary

Vyper is a Pythonic Smart Contract Language for the EVM. When the Vyper Compiler uses the precompiles EcRecover (0x1) and Identity (0x4), the success flag of the call is not checked. As a consequence an attacker can provide a specific amount of gas to make these calls fail but let the overall execution continue. Then the execution result can be incorrect. Based on EVM's rules, after the failed precompile the remaining code has only 1/64 of the pre-call-gas left (as 63/64 were forwarded and spent). Hence, only fairly simple executions can follow the failed precompile calls. Therefore, we found no significantly impacted real-world contracts. None the less an advisory has been made out of an abundance of caution. This issue is fixed in 0.4.1.

Severity ?

2.3 (Low)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CWE

CWE-670 - Always-Incorrect Control Flow Implementation

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/pull/4451	x_refsource_MISC
	https://github.com/vyperlang/vyper/commit/7136eab…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: < 0.4.1

Show details on NVD website

JSON

To clipboard

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CVE-2024-32649 (GCVE-0-2024-32649)

Vulnerability from nvd – Published: 2024-04-25 17:53 – Updated: 2024-08-02 02:13

Title

vyper performs double eval of the argument of sqrt

Summary

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the `sqrt` builtin can result in double eval vulnerability when the argument has side-effects. It can be seen that the `build_IR` function of the `sqrt` builtin doesn't cache the argument to the stack. As such, it can be evaluated multiple times (instead of retrieving the value from the stack). No vulnerable production contracts were found. Additionally, double evaluation of side-effects should be easily discoverable in client tests. As such, the impact is low. As of time of publication, no fixed versions are available.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

Assigner

GitHub_M

References

URL

Tags

https://github.com/vyperlang/vyper/security/advis…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: <= 0.3.10

Show details on NVD website

JSON

To clipboard

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CVE-2024-32648 (GCVE-0-2024-32648)

Vulnerability from nvd – Published: 2024-04-25 17:48 – Updated: 2024-08-02 02:13

Title

vyper default functions don't respect nonreentrancy keys

Summary

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. Prior to version 0.3.0, default functions don't respect nonreentrancy keys and the lock isn't emitted. No vulnerable production contracts were found. Additionally, using a lock on a `default` function is a very sparsely used pattern. As such, the impact is low. Version 0.3.0 contains a patch for the issue.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-667 - Improper Locking

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/issues/2455	x_refsource_MISC
	https://github.com/vyperlang/vyper/commit/93287e5…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: < 0.3.0

Show details on NVD website

JSON

To clipboard

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CVE-2024-32647 (GCVE-0-2024-32647)

Vulnerability from nvd – Published: 2024-04-25 17:41 – Updated: 2024-08-02 02:13

Title

vyper performs double eval of raw_args in create_from_blueprint

Summary

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the `create_from_blueprint` builtin can result in a double eval vulnerability when `raw_args=True` and the `args` argument has side-effects. It can be seen that the `_build_create_IR` function of the `create_from_blueprint` builtin doesn't cache the mentioned `args` argument to the stack. As such, it can be evaluated multiple times (instead of retrieving the value from the stack). No vulnerable production contracts were found. Additionally, double evaluation of side-effects should be easily discoverable in client tests. As such, the impact is low. As of time of publication, no fixed versions exist.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/blob/cedf7087e…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: <= 0.3.10

Show details on NVD website

JSON

To clipboard

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CVE-2024-32646 (GCVE-0-2024-32646)

Vulnerability from nvd – Published: 2024-04-25 17:21 – Updated: 2024-08-02 02:13

Title

vyper performs double eval of the slice args when buffer from adhoc locations

Summary

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the `slice` builtin can result in a double eval vulnerability when the buffer argument is either `msg.data`, `self.code` or `<address>.code` and either the `start` or `length` arguments have side-effects. It can be easily triggered only with the versions `<0.3.4` as `0.3.4` introduced the unique symbol fence. No vulnerable production contracts were found. Additionally, double evaluation of side-effects should be easily discoverable in client tests. As such, the impact is low. As of time of publication, no fixed versions are available.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-20 - Improper Input Validation

Assigner

GitHub_M

References

URL

Tags

https://github.com/vyperlang/vyper/security/advis…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: <= 0.3.10

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2025-26622

Vulnerability from fkie_nvd - Published: 2025-02-21 22:15 - Updated: 2025-03-28 20:06

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Summary

vyper is a Pythonic Smart Contract Language for the EVM. Vyper `sqrt()` builtin uses the babylonian method to calculate square roots of decimals. Unfortunately, improper handling of the oscillating final states may lead to sqrt incorrectly returning rounded up results. This issue is being addressed and a fix is expected in version 0.4.1. Users are advised to upgrade as soon as the patched release is available. There are no known workarounds for this vulnerability.

References

	URL	Tags
	security-advisories@github.com	https://github.com/vyperlang/vyper/pull/4486	Issue Tracking, Patch
	security-advisories@github.com	https://github.com/vyperlang/vyper/security/advisories/GHSA-2p94-8669-xg86	Vendor Advisory

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
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    },
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          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "HIGH",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.3,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
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          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-02-21T22:15:13.447",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/vyperlang/vyper/pull/4486"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-2p94-8669-xg86"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-682"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

FKIE_CVE-2025-27104

Vulnerability from fkie_nvd - Published: 2025-02-21 22:15 - Updated: 2025-03-28 20:05

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

vyper is a Pythonic Smart Contract Language for the EVM. Multiple evaluation of a single expression is possible in the iterator target of a for loop. While the iterator expression cannot produce multiple writes, it can consume side effects produced in the loop body (e.g. read a storage variable updated in the loop body) and thus lead to unexpected program behavior. Specifically, reads in iterators which contain an ifexp (e.g. `for s: uint256 in ([read(), read()] if True else [])`) may interleave reads with writes in the loop body. Vyper for loops allow two kinds of iterator targets, namely the `range()` builtin and an iterable type, like SArray and DArray. During codegen, iterable lists are required to not produce any side-effects (in the following code, `range_scope` forces `iter_list` to be parsed in a constant context, which is checked against `is_constant`). However, this does not prevent the iterator from consuming side effects provided by the body of the loop. For SArrays on the other hand, `iter_list` is instantiated in the body of a `repeat` ir, so it can be evaluated several times. This issue is being addressed and is expected to be available in version 0.4.1. Users are advised to upgrade as soon as the patched release is available. There are no known workarounds for this vulnerability.

References

	URL	Tags
	security-advisories@github.com	https://github.com/vyperlang/vyper/pull/4488	Issue Tracking, Patch
	security-advisories@github.com	https://github.com/vyperlang/vyper/security/advisories/GHSA-h33q-mhmp-8p67	Exploit, Vendor Advisory

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:python:*:*",
              "matchCriteriaId": "73C5488C-E93A-4105-A5CD-AD98075A08E2",
              "versionEndExcluding": "0.4.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "vyper is a Pythonic Smart Contract Language for the EVM. Multiple evaluation of a single expression is possible in the iterator target of a for loop. While the iterator expression cannot produce multiple writes, it can consume side effects produced in the loop body (e.g. read a storage variable updated in the loop body) and thus lead to unexpected program behavior. Specifically, reads in iterators which contain an ifexp (e.g. `for s: uint256 in ([read(), read()] if True else [])`) may interleave reads with writes in the loop body. Vyper for loops allow two kinds of iterator targets, namely the `range()` builtin and an iterable type, like SArray and DArray. During codegen, iterable lists are required to not produce any side-effects (in the following code, `range_scope` forces `iter_list` to be parsed in a constant context, which is checked against `is_constant`). However, this does not prevent the iterator from consuming side effects provided by the body of the loop. For SArrays on the other hand, `iter_list` is instantiated in the body of a `repeat` ir, so it can be evaluated several times. This issue is being addressed and is expected to be available in version 0.4.1. Users are advised to upgrade as soon as the patched release is available. There are no known workarounds for this vulnerability."
    },
    {
      "lang": "es",
      "value": "vyper es un lenguaje de contrato inteligente Pythonic para EVM. Es posible la evaluaci\u00f3n m\u00faltiple de una sola expresi\u00f3n en el destino del iterador de un bucle for. Si bien la expresi\u00f3n del iterador no puede producir m\u00faltiples escrituras, puede consumir efectos secundarios producidos en el cuerpo del bucle (por ejemplo, leer una variable de almacenamiento actualizada en el cuerpo del bucle) y, por lo tanto, provocar un comportamiento inesperado del programa. Espec\u00edficamente, las lecturas en iteradores que contienen una ifexp (por ejemplo, `for s: uint256 in ([read(), read()] if True else [])`) pueden intercalar lecturas con escrituras en el cuerpo del bucle. Los bucles for de Vyper permiten dos tipos de destinos de iterador, a saber, el `range()` incorporado y un tipo iterable, como SArray y DArray. Durante la generaci\u00f3n de c\u00f3digo, se requiere que las listas iterables no produzcan ning\u00fan efecto secundario (en el siguiente c\u00f3digo, `range_scope` obliga a que `iter_list` se analice en un contexto constante, que se verifica con `is_constant`). Sin embargo, esto no evita que el iterador consuma los efectos secundarios proporcionados por el cuerpo del bucle. Por otro lado, para los SArrays, `iter_list` se instancia en el cuerpo de un iterador `repeat`, por lo que se puede evaluar varias veces. Este problema se est\u00e1 solucionando y se espera que est\u00e9 disponible en la versi\u00f3n 0.4.1. Se recomienda a los usuarios que actualicen tan pronto como est\u00e9 disponible la versi\u00f3n parcheada. No se conocen workarounds para esta vulnerabilidad."
    }
  ],
  "id": "CVE-2025-27104",
  "lastModified": "2025-03-28T20:05:35.357",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
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    ],
    "cvssMetricV40": [
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          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
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          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.3,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-02-21T22:15:13.773",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/vyperlang/vyper/pull/4488"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-h33q-mhmp-8p67"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-662"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

FKIE_CVE-2025-27105

Vulnerability from fkie_nvd - Published: 2025-02-21 22:15 - Updated: 2025-03-28 20:02

Severity ?

9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Summary

vyper is a Pythonic Smart Contract Language for the EVM. Vyper handles AugAssign statements by first caching the target location to avoid double evaluation. However, in the case when target is an access to a DynArray and the rhs modifies the array, the cached target will evaluate first, and the bounds check will not be re-evaluated during the write portion of the statement. This issue has been addressed in version 0.4.1 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

References

	URL	Tags
	security-advisories@github.com	https://github.com/vyperlang/vyper/security/advisories/GHSA-4w26-8p97-f4jp	Exploit, Vendor Advisory

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:python:*:*",
              "matchCriteriaId": "73C5488C-E93A-4105-A5CD-AD98075A08E2",
              "versionEndExcluding": "0.4.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "vyper is a Pythonic Smart Contract Language for the EVM. Vyper handles AugAssign statements by first caching the target location to avoid double evaluation. However, in the case when target is an access to a DynArray and the rhs modifies the array, the cached target will evaluate first, and the bounds check will not be re-evaluated during the write portion of the statement. This issue has been addressed in version 0.4.1 and all users are advised to upgrade. There are no known workarounds for this vulnerability."
    },
    {
      "lang": "es",
      "value": "vyper es un lenguaje de contrato inteligente Pythonic para EVM. Vyper gestiona las instrucciones AugAssign almacenando primero en cach\u00e9 la ubicaci\u00f3n de destino para evitar una doble evaluaci\u00f3n. Sin embargo, en el caso en que el destino sea un acceso a un DynArray y el rhs modifique la matriz, el destino almacenado en cach\u00e9 se evaluar\u00e1 primero y la verificaci\u00f3n de l\u00edmites no se volver\u00e1 a evaluar durante la parte de escritura de la instrucci\u00f3n. Este problema se ha solucionado en la versi\u00f3n 0.4.1 y se recomienda a todos los usuarios que actualicen. No existen workarounds conocidos para esta vulnerabilidad."
    }
  ],
  "id": "CVE-2025-27105",
  "lastModified": "2025-03-28T20:02:28.310",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
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          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.3,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-02-21T22:15:13.910",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-4w26-8p97-f4jp"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

FKIE_CVE-2025-21607

Vulnerability from fkie_nvd - Published: 2025-01-14 18:16 - Updated: 2025-04-24 15:15

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Summary

Vyper is a Pythonic Smart Contract Language for the EVM. When the Vyper Compiler uses the precompiles EcRecover (0x1) and Identity (0x4), the success flag of the call is not checked. As a consequence an attacker can provide a specific amount of gas to make these calls fail but let the overall execution continue. Then the execution result can be incorrect. Based on EVM's rules, after the failed precompile the remaining code has only 1/64 of the pre-call-gas left (as 63/64 were forwarded and spent). Hence, only fairly simple executions can follow the failed precompile calls. Therefore, we found no significantly impacted real-world contracts. None the less an advisory has been made out of an abundance of caution. This issue is fixed in 0.4.1.

References

URL	Tags
security-advisories@github.com	https://github.com/vyperlang/vyper/commit/7136eab0a254aa2ff7ddca41cc05f2ee1fa99caf
security-advisories@github.com	https://github.com/vyperlang/vyper/pull/4451
security-advisories@github.com	https://github.com/vyperlang/vyper/security/advisories/GHSA-vgf2-gvx8-xwc3	Exploit, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/vyperlang/vyper/security/advisories/GHSA-vgf2-gvx8-xwc3	Exploit, Vendor Advisory

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:vyperlang:vyper:*:-:*:*:*:python:*:*",
              "matchCriteriaId": "AD322659-77B5-4C4B-8496-C83D3C6A6C02",
              "versionEndExcluding": "0.4.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Vyper is a Pythonic Smart Contract Language for the EVM. When the Vyper Compiler uses the precompiles EcRecover (0x1) and Identity (0x4), the success flag of the call is not checked. As a consequence an attacker can provide a specific amount of gas to make these calls fail but let the overall execution continue. Then the execution result can be incorrect. Based on EVM\u0027s rules, after the failed precompile the remaining code has only 1/64 of the pre-call-gas left (as 63/64 were forwarded and spent). Hence, only fairly simple executions can follow the failed precompile calls. Therefore, we found no significantly impacted real-world contracts. None the less an advisory has been made out of an abundance of caution. This issue is fixed in 0.4.1."
    },
    {
      "lang": "es",
      "value": "Vyper es un lenguaje de contratos inteligentes Pythonic para EVM. Cuando el compilador Vyper utiliza las precompilaciones EcRecover (0x1) e Identity (0x4), no se comprueba el indicador de \u00e9xito de la llamada. Como consecuencia, un atacante puede proporcionar una cantidad espec\u00edfica de gas para hacer que estas llamadas fallen, pero dejar que la ejecuci\u00f3n general contin\u00fae. Entonces, el resultado de la ejecuci\u00f3n puede ser incorrecto. Seg\u00fan las reglas de EVM, despu\u00e9s de la precompilaci\u00f3n fallida, el c\u00f3digo restante solo tiene 1/64 del gas de prellamada restante (ya que se reenviaron y gastaron 63/64). Por lo tanto, solo las ejecuciones bastante simples pueden seguir a las llamadas de precompilaci\u00f3n fallidas. Por lo tanto, no encontramos contratos del mundo real significativamente afectados. No obstante, se ha realizado un aviso por precauci\u00f3n. No hay acciones que los usuarios puedan tomar."
    }
  ],
  "id": "CVE-2025-21607",
  "lastModified": "2025-04-24T15:15:57.293",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
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    "cvssMetricV40": [
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          "Recovery": "NOT_DEFINED",
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          "attackRequirements": "PRESENT",
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          "valueDensity": "NOT_DEFINED",
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          "vulnerabilityResponseEffort": "NOT_DEFINED"
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  "published": "2025-01-14T18:16:05.490",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/vyperlang/vyper/commit/7136eab0a254aa2ff7ddca41cc05f2ee1fa99caf"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/vyperlang/vyper/pull/4451"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-vgf2-gvx8-xwc3"
    },
    {
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      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-vgf2-gvx8-xwc3"
    }
  ],
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  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "CWE-670"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

FKIE_CVE-2024-32649

Vulnerability from fkie_nvd - Published: 2024-04-25 18:15 - Updated: 2025-01-02 22:39

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Summary

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the `sqrt` builtin can result in double eval vulnerability when the argument has side-effects. It can be seen that the `build_IR` function of the `sqrt` builtin doesn't cache the argument to the stack. As such, it can be evaluated multiple times (instead of retrieving the value from the stack). No vulnerable production contracts were found. Additionally, double evaluation of side-effects should be easily discoverable in client tests. As such, the impact is low. As of time of publication, no fixed versions are available.

References

	URL	Tags
	security-advisories@github.com	https://github.com/vyperlang/vyper/security/advisories/GHSA-5jrj-52x8-m64h	Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://github.com/vyperlang/vyper/security/advisories/GHSA-5jrj-52x8-m64h	Vendor Advisory

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:python:*:*",
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    },
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  "id": "CVE-2024-32649",
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    },
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          "value": "NVD-CWE-Other"
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

FKIE_CVE-2024-32648

Vulnerability from fkie_nvd - Published: 2024-04-25 18:15 - Updated: 2025-01-02 22:43

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Summary

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. Prior to version 0.3.0, default functions don't respect nonreentrancy keys and the lock isn't emitted. No vulnerable production contracts were found. Additionally, using a lock on a `default` function is a very sparsely used pattern. As such, the impact is low. Version 0.3.0 contains a patch for the issue.

References

URL	Tags
security-advisories@github.com	https://github.com/vyperlang/vyper/commit/93287e5ac184b53b395c907d40701f721daf8177	Patch
security-advisories@github.com	https://github.com/vyperlang/vyper/issues/2455	Issue Tracking
security-advisories@github.com	https://github.com/vyperlang/vyper/security/advisories/GHSA-m2v9-w374-5hj9	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/vyperlang/vyper/commit/93287e5ac184b53b395c907d40701f721daf8177	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/vyperlang/vyper/issues/2455	Issue Tracking
af854a3a-2127-422b-91ae-364da2661108	https://github.com/vyperlang/vyper/security/advisories/GHSA-m2v9-w374-5hj9	Vendor Advisory

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	*

JSON

To clipboard

{
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    {
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        {
          "cpeMatch": [
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              "versionEndExcluding": "0.3.0",
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      "value": "Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. Prior to version 0.3.0, default functions don\u0027t respect nonreentrancy keys and the lock isn\u0027t emitted. No vulnerable production contracts were found. Additionally, using a lock on a `default` function is a very sparsely used pattern. As such, the impact is low. Version 0.3.0 contains a patch for the issue.\n"
    },
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      "lang": "es",
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    }
  ],
  "id": "CVE-2024-32648",
  "lastModified": "2025-01-02T22:43:19.753",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
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          "baseScore": 5.3,
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          "integrityImpact": "LOW",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
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        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
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        "source": "nvd@nist.gov",
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  "published": "2024-04-25T18:15:09.157",
  "references": [
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  "vulnStatus": "Analyzed",
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      "type": "Secondary"
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      "type": "Primary"
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  ]
}

FKIE_CVE-2024-32645

Vulnerability from fkie_nvd - Published: 2024-04-25 18:15 - Updated: 2025-01-02 22:52

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Summary

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, incorrect values can be logged when `raw_log` builtin is called with memory or storage arguments to be used as topics. A contract search was performed and no vulnerable contracts were found in production. The `build_IR` function of the `RawLog` class fails to properly unwrap the variables provided as topics. Consequently, incorrect values are logged as topics. As of time of publication, no fixed version is available.

References

	URL	Tags
	security-advisories@github.com	https://github.com/vyperlang/vyper/security/advisories/GHSA-xchq-w5r3-4wg3	Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://github.com/vyperlang/vyper/security/advisories/GHSA-xchq-w5r3-4wg3	Vendor Advisory

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:python:*:*",
              "matchCriteriaId": "CEC5BCE2-DB5C-49EB-A302-F11E4E02F9BD",
              "versionEndExcluding": "0.4.0",
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          "operator": "OR"
        }
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, incorrect values can be logged when `raw_log` builtin is called with memory or storage arguments to be used as topics. A contract search was performed and no vulnerable contracts were found in production. The `build_IR` function of the `RawLog` class fails to properly unwrap the variables provided as topics. Consequently, incorrect values are logged as topics. As of time of publication, no fixed version is available."
    },
    {
      "lang": "es",
      "value": "Vyper es un lenguaje de contrato inteligente pit\u00f3nico para la m\u00e1quina virtual Ethereum. En las versiones 0.3.10 y anteriores, se pueden registrar valores incorrectos cuando se llama al comando interno `raw_log` con argumentos de memoria o almacenamiento para usar como temas. Se realiz\u00f3 una b\u00fasqueda de contratos y no se encontraron contratos vulnerables en producci\u00f3n. La funci\u00f3n `build_IR` de la clase `RawLog` no desenvuelve correctamente las variables proporcionadas como temas. En consecuencia, los valores incorrectos se registran como temas. Al momento de la publicaci\u00f3n, no hay ninguna versi\u00f3n fija disponible."
    }
  ],
  "id": "CVE-2024-32645",
  "lastModified": "2025-01-02T22:52:27.117",
  "metrics": {
    "cvssMetricV31": [
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
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          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
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        "source": "security-advisories@github.com",
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  "published": "2024-04-25T18:15:08.593",
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    },
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      "description": [
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          "value": "NVD-CWE-noinfo"
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}

FKIE_CVE-2024-32646

Vulnerability from fkie_nvd - Published: 2024-04-25 18:15 - Updated: 2025-01-02 22:52

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Summary

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the `slice` builtin can result in a double eval vulnerability when the buffer argument is either `msg.data`, `self.code` or `<address>.code` and either the `start` or `length` arguments have side-effects. It can be easily triggered only with the versions `<0.3.4` as `0.3.4` introduced the unique symbol fence. No vulnerable production contracts were found. Additionally, double evaluation of side-effects should be easily discoverable in client tests. As such, the impact is low. As of time of publication, no fixed versions are available.

References

	URL	Tags
	security-advisories@github.com	https://github.com/vyperlang/vyper/security/advisories/GHSA-r56x-j438-vw5m	Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://github.com/vyperlang/vyper/security/advisories/GHSA-r56x-j438-vw5m	Vendor Advisory

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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      "value": "Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the `slice` builtin can result in a double eval vulnerability when the buffer argument is either `msg.data`, `self.code` or `\u003caddress\u003e.code` and either the `start` or `length` arguments have side-effects. It can be easily triggered only with the versions `\u003c0.3.4` as `0.3.4` introduced the unique symbol fence. No vulnerable production contracts were found. Additionally, double evaluation of side-effects should be easily discoverable in client tests. As such, the impact is low. As of time of publication, no fixed versions are available.\n\n"
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    }
  ],
  "id": "CVE-2024-32646",
  "lastModified": "2025-01-02T22:52:15.927",
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FKIE_CVE-2024-32647

Vulnerability from fkie_nvd - Published: 2024-04-25 18:15 - Updated: 2025-01-02 22:46

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Summary

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the `create_from_blueprint` builtin can result in a double eval vulnerability when `raw_args=True` and the `args` argument has side-effects. It can be seen that the `_build_create_IR` function of the `create_from_blueprint` builtin doesn't cache the mentioned `args` argument to the stack. As such, it can be evaluated multiple times (instead of retrieving the value from the stack). No vulnerable production contracts were found. Additionally, double evaluation of side-effects should be easily discoverable in client tests. As such, the impact is low. As of time of publication, no fixed versions exist.

References

URL	Tags
security-advisories@github.com	https://github.com/vyperlang/vyper/blob/cedf7087e68e67c7bfbd47ae95dcb16b81ad2e02/vyper/builtins/functions.py#L1847	Product
security-advisories@github.com	https://github.com/vyperlang/vyper/security/advisories/GHSA-3whq-64q2-qfj6	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/vyperlang/vyper/blob/cedf7087e68e67c7bfbd47ae95dcb16b81ad2e02/vyper/builtins/functions.py#L1847	Product
af854a3a-2127-422b-91ae-364da2661108	https://github.com/vyperlang/vyper/security/advisories/GHSA-3whq-64q2-qfj6	Vendor Advisory

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	*

JSON

To clipboard

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Search criteria

118 vulnerabilities found for vyper by vyperlang

CVE-2025-47774 (GCVE-0-2025-47774)

CVE-2025-47285 (GCVE-0-2025-47285)

CVE-2025-26622 (GCVE-0-2025-26622)

CVE-2025-27104 (GCVE-0-2025-27104)

CVE-2025-27105 (GCVE-0-2025-27105)

CVE-2025-21607 (GCVE-0-2025-21607)

CVE-2024-32649 (GCVE-0-2024-32649)

CVE-2024-32648 (GCVE-0-2024-32648)

CVE-2024-32647 (GCVE-0-2024-32647)

CVE-2024-32646 (GCVE-0-2024-32646)

CVE-2024-32645 (GCVE-0-2024-32645)

CVE-2025-47774 (GCVE-0-2025-47774)

CVE-2025-47285 (GCVE-0-2025-47285)

CVE-2025-26622 (GCVE-0-2025-26622)

CVE-2025-27104 (GCVE-0-2025-27104)

CVE-2025-27105 (GCVE-0-2025-27105)

CVE-2025-21607 (GCVE-0-2025-21607)

CVE-2024-32649 (GCVE-0-2024-32649)

CVE-2024-32648 (GCVE-0-2024-32648)

CVE-2024-32647 (GCVE-0-2024-32647)

CVE-2024-32646 (GCVE-0-2024-32646)