Common Weakness Enumeration
CWE-1284
AllowedImproper Validation of Specified Quantity in Input
Abstraction: Base · Status: Incomplete
The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.
518 vulnerabilities reference this CWE, most recent first.
CVE-2026-66374 (GCVE-0-2026-66374)
Vulnerability from cvelistv5 – Published: 2026-07-25 00:28 – Updated: 2026-07-27 14:36
VLAI
EPSS
VEX
Summary
Knot Resolver before 6.4.1 allows remote code execution via a heap-based buffer overflow in the DoQ (DNS-over-QUIC) receive path.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nic | Knot Resolver |
Affected:
0 , < 6.4.1
(semver)
|
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CVE-2026-59997 (GCVE-0-2026-59997)
Vulnerability from cvelistv5 – Published: 2026-07-08 00:09 – Updated: 2026-07-08 12:52
VLAI
EPSS
VEX
Summary
internal-sftp in sshd in OpenSSH before 10.4 recognizes only the first 9 command-line arguments, which can be important if a later command-line argument would have helped to ensure the intended security properties of an SFTP connection.
Severity
4.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
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CVE-2026-59930 (GCVE-0-2026-59930)
Vulnerability from cvelistv5 – Published: 2026-07-08 16:13 – Updated: 2026-07-09 13:54
VLAI
EPSS
VEX
Title
Mistune toc / TableOfContents directive: heading IDs use predictable `toc_N` numbering with no slugification, allowing collision with attacker-controlled `id="toc_N"` content
Summary
Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the toc plugin and TableOfContents directive generate heading IDs as predictable toc_N values without slugifying the heading text, allowing attacker-controlled id="toc_N" content to collide with generated anchors and redirect same-page navigation, CSS selectors, or JavaScript handlers. This issue is fixed in version 3.3.0.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/lepture/mistune/security/advis… | x_refsource_CONFIRM |
| https://github.com/lepture/mistune/commit/c4093c4… | x_refsource_MISC |
| https://github.com/lepture/mistune/releases/tag/v3.3.0 | x_refsource_MISC |
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CVE-2026-59879 (GCVE-0-2026-59879)
Vulnerability from cvelistv5 – Published: 2026-07-08 15:47 – Updated: 2026-07-08 19:41
VLAI
EPSS
VEX
Title
Immutable.js `List` 32-bit trie overflow → unrecoverable DoS
Summary
Immutable.js provides many Persistent Immutable data structures. Prior to 4.3.9 and 5.1.8, List#set, List#setSize, List#setIn, List#updateIn, and the functional set, setIn, and updateIn mishandle an index or size in the range 2 ** 30 to 2 ** 31 in setListBounds in src/List.js, causing an empty List to enter an uncatchable infinite loop, a populated List to allocate without bound until process abort, or setSize to silently wrap large values. This issue is fixed in versions 4.3.9 and 5.1.8.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/immutable-js/immutable-js/secu… | x_refsource_CONFIRM |
| https://github.com/immutable-js/immutable-js/comm… | x_refsource_MISC |
| https://github.com/immutable-js/immutable-js/comm… | x_refsource_MISC |
| https://github.com/immutable-js/immutable-js/rele… | x_refsource_MISC |
| https://github.com/immutable-js/immutable-js/rele… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| immutable-js | immutable-js |
Affected:
>= 5.0.0-beta.1, < 5.1.8
Affected: < 4.3.9 |
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CVE-2026-59695 (GCVE-0-2026-59695)
Vulnerability from cvelistv5 – Published: 2026-07-17 10:11 – Updated: 2026-07-18 04:12
VLAI
EPSS
VEX
Title
Unbounded max_fee_per_gas in mpp Tempo fee-payer enables single-request wallet drain
Summary
Improper Validation of Specified Quantity in Input in ZenHive mpp allows an unauthenticated remote client to drain the fee-payer wallet in a single request by naming an arbitrarily high gas price.
When the mpp Elixir library is configured as fee payer (fee_payer: true), MPP.Tempo.Transaction.cosign_fee_payer/3 re-signs the client-supplied base fields of the 0x76 AASigned envelope verbatim, including max_fee_per_gas and max_priority_fee_per_gas, without validating that they are within reasonable bounds. A malicious client embeds arbitrarily large values for these fields in the signed envelope. The server co-signs and broadcasts the transaction. The effective_gas_price billed against the fee-payer wallet is derived from the attacker-supplied ceilings, so the server pays those inflated per-gas rates out of its own wallet. A single crafted request can drain the wallet entirely, after which the server can no longer sponsor gas for legitimate payment requests.
This issue affects mpp: from 0.2.0 before 0.6.0.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ZenHive/mpp/security/advisorie… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-59695.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-59695 | related |
| https://github.com/ZenHive/mpp/commit/5d6338e2334… | patch |
Impacted products
Credits
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CVE-2026-59694 (GCVE-0-2026-59694)
Vulnerability from cvelistv5 – Published: 2026-07-17 10:11 – Updated: 2026-07-18 04:12
VLAI
EPSS
VEX
Title
Unbounded access list in mpp Tempo fee-payer inflates gas cost per payment
Summary
Improper Validation of Specified Quantity in Input in ZenHive mpp allows an unauthenticated remote client to inflate the fee-payer's gas cost per payment by a large multiplier, degrading the sponsor's operating margin.
When the mpp Elixir library is configured as fee payer (fee_payer: true), MPP.Tempo.Transaction.cosign_fee_payer/3 re-signs the client-supplied base fields of the 0x76 AASigned envelope verbatim, including the EIP-2930 access list, without validating its length or contents. EIP-2930 access list entries incur intrinsic gas (~2,400 gas per address, plus 1,900 gas per storage key) charged before any opcode executes, regardless of whether the listed addresses are ever touched. A malicious client submits a valid transferWithMemo call alongside a large number of fabricated access-list entries. The server co-signs and broadcasts the transaction. The intended transfer executes normally, but the fee-payer wallet pays a large multiple of the expected gas cost with no corresponding on-chain work.
At the maintainer's default of 137 access-list entries (fitting within Bandit's 10,000-byte per-header-field limit) and 100 Gwei max_fee_per_gas, per-payment gas cost rises from ~51,287 to ~380,087 gas, a 7.4x multiplier. Sustained abuse destroys the sponsor's operating margin on low-cost payments and, over time, drains the fee-payer wallet.
This issue affects mpp: from 0.2.0 before 0.6.0.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ZenHive/mpp/security/advisorie… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-59694.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-59694 | related |
| https://github.com/ZenHive/mpp/commit/5d6338e2334… | patch |
Impacted products
Credits
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CVE-2026-59532 (GCVE-0-2026-59532)
Vulnerability from cvelistv5 – Published: 2026-07-27 13:59 – Updated: 2026-07-27 16:38
VLAI
EPSS
VEX
Title
WordPress Booking and Rental Manager plugin <= 2.7.2 - Price Manipulation vulnerability
Summary
Unauthenticated Other Vulnerability Type in Booking and Rental Manager <= 2.7.2 versions.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| magepeopleteam | Booking and Rental Manager |
Affected:
n/a , ≤ 2.7.2
(custom)
|
Credits
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CVE-2026-59531 (GCVE-0-2026-59531)
Vulnerability from cvelistv5 – Published: 2026-07-27 13:59 – Updated: 2026-07-27 18:10
VLAI
EPSS
VEX
Title
WordPress Falcon – WordPress Optimizations & Tweaks plugin <= 2.10.0 - Unknown vulnerability
Summary
Unauthenticated Unknown in Falcon – WordPress Optimizations & Tweaks <= 2.10.0 versions.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Anh Tran | Falcon – WordPress Optimizations & Tweaks |
Affected:
n/a , ≤ 2.10.0
(custom)
|
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CVE-2026-59252 (GCVE-0-2026-59252)
Vulnerability from cvelistv5 – Published: 2026-07-17 10:11 – Updated: 2026-07-18 04:12
VLAI
EPSS
VEX
Title
Missing gas_limit validation in mpp Tempo fee-payer enables wallet drain
Summary
Improper Validation of Specified Quantity in Input in ZenHive mpp allows an unauthenticated remote client to drain the fee-payer wallet, resulting in denial of service for legitimate clients.
When the mpp Elixir library is configured as fee payer (fee_payer: true), the MPP.Methods.Tempo payment method co-signs and broadcasts a client-supplied EVM transaction without first validating that the client-supplied gas_limit is sufficient to complete the intended call. A malicious client can submit a signed transferWithMemo transaction with gas_limit deliberately set just below the amount required for successful execution. The server co-signs the transaction and broadcasts it via rpc_broadcast_sync. The transaction runs out of gas during EVM execution and reverts, but the fee-payer wallet is still charged for the burned gas while the client pays nothing and receives no resource. Repeated requests from one or more malicious clients drain the fee-payer wallet at near-zero cost to the attacker, ultimately preventing the server from sponsoring gas for legitimate payment requests.
The wait_for_confirmation = false (optimistic) path is also affected: it invokes simulate_payment_call via eth_call, but that simulation omits the gas parameter and therefore does not catch out-of-gas conditions.
This issue affects mpp: from 0.2.0 before 0.6.0.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ZenHive/mpp/security/advisorie… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-59252.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-59252 | related |
| https://github.com/ZenHive/mpp/commit/d84e3e528db… | patch |
Impacted products
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CVE-2026-58662 (GCVE-0-2026-58662)
Vulnerability from cvelistv5 – Published: 2026-07-27 11:17 – Updated: 2026-07-27 13:07
VLAI
EPSS
VEX
Title
Apache Thrift: C++ THeaderTransport::readString() info-header length bounds bypass
Summary
Improper Validation of Specified Quantity in Input, Out-of-bounds Read vulnerability in Apache Thrift C++ bindings.
This issue affects Apache Thrift: before 0.24.0.
Users are recommended to upgrade to version 0.24.0, which fixes the issue.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/7v3jhgwfbmhx42424… | vendor-advisory |
| https://lists.apache.org/thread/13mzvylr3r3nktxrh… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Thrift |
Affected:
0 , < 0.24.0
(semver)
|
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Mitigation MIT-5
Implementation
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
No CAPEC attack patterns related to this CWE.