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.
581 vulnerabilities reference this CWE, most recent first.
CVE-2026-70409 (GCVE-0-2026-70409)
Vulnerability from cvelistv5 – Published: 2026-09-01 14:51 – Updated: 2026-09-08 01:09
VLAI
EPSS
VEX
Title
eldap does not bound the port component of a referral URL before integer conversion
Summary
Improper Validation of Specified Quantity in Input vulnerability in Erlang/OTP eldap allows a malicious or compromised LDAP server to degrade availability by returning a referral URL whose port component is a very long run of digits.
eldap:parse_port/2 passes the port substring straight to list_to_integer/1 with no length bound. The surrounding try ... catch only rejects a value that fails to parse, so a syntactically valid port of up to roughly 1.26 million digits converts successfully and costs the caller hundreds of milliseconds of arbitrary-precision arithmetic per referral. The conversion function itself is documented to accept integers of any size, so bounding the input is the caller's responsibility. Reaching the flaw requires the application to pass a server-supplied referral to eldap:parse_ldap_url/1, which eldap never calls itself: referral strings are returned to the caller unparsed.
This issue affects OTP from OTP 17.0 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to eldap from 1.0.3 before 1.2.14.2, from 1.2.15 before 1.2.16.1, and from 1.3 before 1.3.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 17:52 UTC
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/erlang/otp/security/advisories… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-70409.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-70409 | related |
| https://www.erlang.org/doc/system/versions.html#o… | x_version-scheme |
| https://github.com/erlang/otp/commit/aba0fe8c2d70… | patch |
| https://github.com/erlang/otp/commit/e3be1cfe9f6c… | patch |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Erlang | OTP |
Affected:
17.0 , < 27.3.4.17
(otp)
Affected: 28.0 , < 28.5.0.6 (otp) Affected: 29.0 , < 29.0.6 (otp) cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
|
| Erlang | OTP |
Affected:
1.0.3 , < 1.2.14.2
(otp)
Affected: 1.2.15 , < 1.2.16.1 (otp) Affected: 1.3 , < 1.3.1 (otp) cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
|
| Erlang | OTP |
Affected:
d8dbf15de4fa1a08b9a05e7d8e08fdb025fe1dc3 , < *
(git)
cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
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CVE-2026-70405 (GCVE-0-2026-70405)
Vulnerability from cvelistv5 – Published: 2026-09-01 14:50 – Updated: 2026-09-08 01:08
VLAI
EPSS
VEX
Title
snmp BER INTEGER decoder applies no size limit to attacker-supplied integer fields
Summary
Improper Validation of Specified Quantity in Input vulnerability in Erlang/OTP snmp allows a remote attacker to degrade availability by sending an SNMP message containing a BER INTEGER whose length field is arbitrarily large.
snmp_pdus:dec_integer_notag/1 defaults its size limit to infinity, and do_dec_integer_notag/2 then accumulates the value across every declared byte with a recursive shift and bitwise or. Work grows superlinearly in the declared length because each operation acts on a progressively larger bignum. The size-limited variant dec_integer_notag/2 exists but is reached from only one call site, dec_snmp_version/1, which bounds the version field to ten bytes; the request identifier, error status and index, generic and specific trap fields, engine boots and time, and every varbind value decoded by dec_value/1 all use the unbounded form. The decode runs before the PDU is processed, so no valid request is required beyond what the deployment demands to accept the message at all.
This issue affects OTP from OTP 17.0 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to snmp from 4.25.1 before 5.18.2.1, from 5.19 before 5.20.2.2, and from 5.20.3 before 5.20.5. Whether OTP before OTP 17.0, corresponding to snmp before 4.25.1, is affected is unknown.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 18:09 UTC
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/erlang/otp/security/advisories… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-70405.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-70405 | related |
| https://www.erlang.org/doc/system/versions.html#o… | x_version-scheme |
| https://github.com/erlang/otp/commit/aba0fe8c2d70… | patch |
| https://github.com/erlang/otp/commit/e3be1cfe9f6c… | patch |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Erlang | OTP |
Unknown:
0 , < 17.0
(otp)
Affected: 17.0 , < 27.3.4.17 (otp) Affected: 28.0 , < 28.5.0.6 (otp) Affected: 29.0 , < 29.0.6 (otp) cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
|
| Erlang | OTP |
Unknown:
0 , < 4.25.1
(otp)
Affected: 4.25.1 , < 5.18.2.1 (otp) Affected: 5.19 , < 5.20.2.2 (otp) Affected: 5.20.3 , < 5.20.5 (otp) cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
|
| Erlang | OTP |
Affected:
84adefa331c4159d432d22840663c38f155cd4c1 , < *
(git)
cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
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CVE-2026-70378 (GCVE-0-2026-70378)
Vulnerability from cvelistv5 – Published: 2026-08-05 06:58 – Updated: 2026-08-10 11:44
VLAI
EPSS
VEX
Title
imagecli - Negative carve Ratio Bypasses Bounds Check and Crashes Process via Reachable Panic
Summary
imagecli's pipeline operation (Carve::apply in src/image_ops.rs) only asserts , never validating that the ratio is positive. A negative ratio (e.g. -5) causes the computed target width to saturate to 0 via Rust's defined float-to-uint cast, which is then passed to imageproc::seam_carving::shrink_width — a function that panics when given a width below 2, crashing the process.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 13:14 UTC
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/theotherphil/imagecli/issues/67 | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| theotherphil | imagecli |
Affected:
0 , ≤ 0.2.1
(custom)
|
Date Public
2026-08-05 06:58
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CVE-2026-69210 (GCVE-0-2026-69210)
Vulnerability from cvelistv5 – Published: 2026-09-15 19:19 – Updated: 2026-09-15 19:19
VLAI
EPSS
VEX
Title
Http4s: WebSocket decoder accepts negative length, causing infinite decode loop
Summary
Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, WebSocket FrameTranscoder.bodyLength rejects extended payload lengths above Integer.MAX_VALUE but permits negative 64-bit lengths. A remote client that completes a WebSocket handshake through an Ember server can send such a frame, causing the decoder to return an empty frame without advancing its input. The decode loop then runs indefinitely, pins a worker at full CPU, and grows an ArrayBuffer without bound, resulting in denial of service. This issue is fixed in versions 0.23.35 and 1.0.0-M47.
Severity
7.5 (High)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/http4s/http4s/security/advisor… | x_refsource_CONFIRM |
| https://github.com/http4s/http4s/commit/c7d3ef90d… | x_refsource_MISC |
| https://github.com/http4s/http4s/releases/tag/v0.23.35 | x_refsource_MISC |
| https://github.com/http4s/http4s/releases/tag/v1.… | x_refsource_MISC |
Impacted products
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CVE-2026-66679 (GCVE-0-2026-66679)
Vulnerability from cvelistv5 – Published: 2026-08-18 13:59 – Updated: 2026-08-18 19:48
VLAI
EPSS
VEX
Title
WordPress Appointment Hour Booking plugin <= 1.5.91 - Broken Access Control vulnerability
Summary
Unauthenticated Broken Access Control in Appointment Hour Booking <= 1.5.91 versions.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:34 UTC
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 | |
|---|---|---|---|
| codepeople | Appointment Hour Booking |
Affected:
n/a , ≤ 1.5.91
(custom)
|
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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 · CISA-ADP (v2.0.3)
Decision recorded 2026-07-27 14:35 UTC
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)
cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:* |
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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 · CISA-ADP (v2.0.3)
Decision recorded 2026-07-08 12:52 UTC
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
Impacted products
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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 · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:53 UTC
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-07-08 17:51 UTC
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-2026-59696 (GCVE-0-2026-59696)
Vulnerability from cvelistv5 – Published: 2026-09-01 14:37 – Updated: 2026-09-08 01:07
VLAI
EPSS
VEX
Title
uri_string does not bound the port component of a URI before integer conversion
Summary
Improper Validation of Specified Quantity in Input vulnerability in Erlang/OTP stdlib allows a remote attacker to degrade availability by supplying a URI whose port component is a very long run of digits.
uri_string:get_port/1 passes the port substring to binary_to_integer/1 with no length bound, catching only error:badarg, so a syntactically valid port of up to roughly 1.26 million digits converts successfully and costs the calling process hundreds of milliseconds of arbitrary-precision arithmetic. The conversion is reached from every authority-parsing path in uri_string:parse/1, including the host, registered-name, and IPv4 and IPv6 forms. parse/1 is the documented interface for parsing URIs, so any application that parses an attacker-supplied URI is exposed without further configuration. The conversion function is documented to accept integers of any size, so bounding the input is the caller's responsibility.
This issue affects OTP from OTP 21.0 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to stdlib from 3.5 before 6.2.2.5, from 7.0 before 7.3.0.2, and from 8.0 before 8.0.4.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 15:54 UTC
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/erlang/otp/security/advisories… | vendor-advisory |
| https://cna.erlef.org/cves/CVE-2026-59696.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-59696 | related |
| https://www.erlang.org/doc/system/versions.html#o… | x_version-scheme |
| https://github.com/erlang/otp/commit/aba0fe8c2d70… | patch |
| https://github.com/erlang/otp/commit/e3be1cfe9f6c… | patch |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Erlang | OTP |
Affected:
21.0 , < 27.3.4.17
(otp)
Affected: 28.0 , < 28.5.0.6 (otp) Affected: 29.0 , < 29.0.6 (otp) cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
|
| Erlang | OTP |
Affected:
3.5 , < 6.2.2.5
(otp)
Affected: 7.0 , < 7.3.0.2 (otp) Affected: 8.0 , < 8.0.4 (otp) cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
|
| Erlang | OTP |
Affected:
29a9dd0e17a97a3e6e46f0d08c6ba8f31db33f5e , < *
(git)
cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
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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.