Common Weakness Enumeration
CWE-401
AllowedMissing Release of Memory after Effective Lifetime
Abstraction: Variant · Status: Draft
The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
384 vulnerabilities reference this CWE, most recent first.
CVE-2026-116152 (GCVE-0-2026-116152)
Vulnerability from cvelistv5 – Published: 2026-10-25 13:20 – Updated: 2026-11-05 16:19
VLAI
EPSS
VEX
Title
ImageMagick before 7.1.2-33 Memory Leak in MAT Decoder Error Path
Summary
ImageMagick before 7.1.2-33 contains a memory leak vulnerability in the MAT decoder that fails to release allocated memory in a specific error path. Attackers can supply crafted MAT files that trigger this error path repeatedly, causing small memory leaks that gradually consume process memory.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 16:19 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ImageMagick/ImageMagick/securi… | vendor-advisory |
| https://www.vulncheck.com/advisories/imagemagick-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ImageMagick | ImageMagick |
Affected:
0 , < 7.1.2-33
(custom)
Unaffected: 7.1.2-33 (custom) cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* |
Date Public
2026-10-10 00:00
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CVE-2026-116151 (GCVE-0-2026-116151)
Vulnerability from cvelistv5 – Published: 2026-10-25 13:19 – Updated: 2026-10-26 16:49
VLAI
EPSS
VEX
Title
ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 Memory Leak in JNG Encoder
Summary
ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 contains a memory leak in the JNG encoder that fails to release allocated memory when processing a crafted image. Attackers can supply crafted images that are encoded to JNG to leak memory, potentially causing resource exhaustion and a limited denial of service.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-26 15:38 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ImageMagick/ImageMagick/securi… | vendor-advisory |
| https://www.vulncheck.com/advisories/imagemagick-… | third-party-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| ImageMagick | ImageMagick |
Affected:
7.0.0-0 , < 7.1.2-33
(custom)
Unaffected: 7.1.2-33 (custom) |
|
| ImageMagick | ImageMagick |
Affected:
0 , < 6.9.13-58
(custom)
Unaffected: 6.9.13-58 (custom) |
Date Public
2026-10-10 00:00
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CVE-2026-116150 (GCVE-0-2026-116150)
Vulnerability from cvelistv5 – Published: 2026-10-25 13:19 – Updated: 2026-10-26 19:58
VLAI
EPSS
VEX
Title
ImageMagick before 7.1.2-33 Memory Leak in FPX Encoder
Summary
ImageMagick before 7.1.2-33 contains a memory leak vulnerability in the FPX encoder that allows attackers to exhaust memory by supplying a crafted image. Attackers can submit crafted images for FPX encoding to leak memory repeatedly, causing resource exhaustion and denial of service.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-26 19:41 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ImageMagick/ImageMagick/securi… | vendor-advisory |
| https://www.vulncheck.com/advisories/imagemagick-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ImageMagick | ImageMagick |
Affected:
0 , < 7.1.2-33
(custom)
Unaffected: 7.1.2-33 (custom) cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* |
Date Public
2026-10-10 00:00
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CVE-2026-116146 (GCVE-0-2026-116146)
Vulnerability from cvelistv5 – Published: 2026-10-25 13:19 – Updated: 2026-10-26 19:58
VLAI
EPSS
VEX
Title
ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 Memory Leak in MSL Decoder
Summary
ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 contains a memory leak in the MSL decoder that fails to release allocated memory when processing a crafted MSL image. Attackers can supply crafted MSL files for processing to repeatedly leak memory, causing resource exhaustion and denial of service.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-26 19:41 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ImageMagick/ImageMagick/securi… | vendor-advisory |
| https://www.vulncheck.com/advisories/imagemagick-… | third-party-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| ImageMagick | ImageMagick |
Affected:
7.0.0-0 , < 7.1.2-33
(custom)
Unaffected: 7.1.2-33 (custom) |
|
| ImageMagick | ImageMagick |
Affected:
0 , < 6.9.13-58
(custom)
Unaffected: 6.9.13-58 (custom) |
Date Public
2026-10-10 00:00
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CVE-2026-114613 (GCVE-0-2026-114613)
Vulnerability from cvelistv5 – Published: 2026-10-22 18:22 – Updated: 2026-10-23 21:08
VLAI
EPSS
VEX
Title
MessagePack: Unbounded memory leak in msgpack C extension on strict_map_key validation failure
Summary
MessagePack is the serializer implementation for Python msgpack.org. Prior to 1.2.3, the msgpack-python C extension (msgpack._cmsgpack) leaks a decoded map value when deserialization rejects a key with strict_map_key=True (the default). Repeated malformed inputs can cause unbounded process memory growth and denial of service in applications that deserialize attacker-controlled MessagePack data. Both unpackb() and the streaming Unpacker API are affected. The pure-Python fallback does not exhibit this leak in the reported tests. This issue is fixed in version 1.2.3.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-23 17:32 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/msgpack/msgpack-python/securit… | x_refsource_CONFIRM |
| https://github.com/msgpack/msgpack-python/commit/… | x_refsource_MISC |
| https://github.com/msgpack/msgpack-python/release… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| msgpack | msgpack-python |
Affected:
< 1.2.3
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CVE-2026-112336 (GCVE-0-2026-112336)
Vulnerability from cvelistv5 – Published: 2026-11-06 15:00 – Updated: 2026-11-06 15:00
VLAI
EPSS
VEX
Title
Wazuh Manager 3.0.0 before 4.14.9 Memory Leak DoS via JSON Decoder
Summary
Wazuh Manager from 3.0.0 before 4.14.9 contains a memory leak vulnerability in the generic JSON decoder that allows remote attackers to exhaust wazuh-analysisd memory via repeated static fields. Attackers can enroll an agent through passwordless enrollment and send events with duplicate fields such as id, triggering an OOM kill that disables alerting.
Severity
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
VulnCheck
CNA
References
5 references
| URL | Tags |
|---|---|
| https://github.com/wazuh/wazuh/security/advisorie… | vendor-advisory |
| https://github.com/wazuh/wazuh/commit/7fdd928228f… | patch |
| https://github.com/wazuh/wazuh/commit/c7df52ee815… | patch |
| https://github.com/wazuh/wazuh/releases/tag/v4.14.9 | release-notes |
| https://www.vulncheck.com/advisories/wazuh-manage… | third-party-advisory |
Impacted products
Date Public
2026-11-06 00:00
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CVE-2026-110754 (GCVE-0-2026-110754)
Vulnerability from cvelistv5 – Published: 2026-10-16 22:06 – Updated: 2026-10-20 18:15
VLAI
EPSS
VEX
Title
Text::CSV_XS versions before 1.65 for Perl leak the parsed fields of a record that fails to parse in getline
Summary
Text::CSV_XS versions before 1.65 for Perl leak the parsed fields of a record that fails to parse in getline.
getline collects the fields of a record into a new array and returns a reference to it only when the parse succeeds. When the record has a syntax error, getline returns undef and never frees the array or the fields parsed before the error.
A long-running process parsing untrusted CSV retains every malformed record it is sent, so repeated malformed input exhausts its memory.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 18:15 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
CPANSec
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/cpan-authors/Text-CSV_XS/commi… | patch |
| https://metacpan.org/release/HMBRAND/Text-CSV_XS-… | release-notes |
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CVE-2026-110685 (GCVE-0-2026-110685)
Vulnerability from cvelistv5 – Published: 2026-10-19 18:12 – Updated: 2026-10-29 17:06
VLAI
EPSS
VEX
Title
Cpanel::JSON::XS versions before 4.80 for Perl leak the decoded arguments of a tagged value when its THAW method dies in decode_tag
Summary
Cpanel::JSON::XS versions before 4.80 for Perl leak the decoded arguments of a tagged value when its THAW method dies in decode_tag.
With allow_tags, a tagged value's class name and argument array are decoded and passed to the class's THAW method. Both are released only after THAW returns, so a THAW that dies leaves the whole decoded argument structure allocated.
Each rejected document leaks data of a size the sender chooses, so a process that catches the error and keeps running exhausts its memory.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 17:05 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
CPANSec
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/rurban/Cpanel-JSON-XS/commit/9… | patch |
| https://metacpan.org/release/RURBAN/Cpanel-JSON-X… | release-notes |
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CVE-2026-110684 (GCVE-0-2026-110684)
Vulnerability from cvelistv5 – Published: 2026-10-19 18:12 – Updated: 2026-10-29 17:01
VLAI
EPSS
VEX
Title
Cpanel::JSON::XS versions from 3.0202 before 4.80 for Perl leak memory and retain overloaded objects when encoding values as strings in encode_stringify
Summary
Cpanel::JSON::XS versions from 3.0202 before 4.80 for Perl leak memory and retain overloaded objects when encoding values as strings in encode_stringify.
encode_stringify writes a value in its string form under allow_stringify, under convert_blessed for objects without TO_JSON, and under allow_bignum. For an array or hash object with a "" overload, and from 4.20 a scalar object, it takes an extra reference that is never released, so the object and everything it references are never freed. From 4.10 it also never frees its copy of the string.
Repeatedly encoding data that contains such values grows process memory without bound.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 17:01 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
CPANSec
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/rurban/Cpanel-JSON-XS/commit/5… | patch |
| https://metacpan.org/release/RURBAN/Cpanel-JSON-X… | release-notes |
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CVE-2026-110677 (GCVE-0-2026-110677)
Vulnerability from cvelistv5 – Published: 2026-10-19 18:11 – Updated: 2026-10-29 16:43
VLAI
EPSS
VEX
Title
Cpanel::JSON::XS versions from 4.28 before 4.80 for Perl leak the array collecting duplicate key values under dupkeys_as_arrayref in decode_hv
Summary
Cpanel::JSON::XS versions from 4.28 before 4.80 for Perl leak the array collecting duplicate key values under dupkeys_as_arrayref in decode_hv.
With dupkeys_as_arrayref, the values of a duplicate object key are collected into a new array. An extra reference is never released, so the array and every value in it outlive the decoded structure. The array also leaks when decoding fails after a duplicate key.
Repeatedly decoding untrusted JSON with a duplicate key holding a large value exhausts process memory.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 16:43 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
CPANSec
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/rurban/Cpanel-JSON-XS/commit/e… | patch |
| https://metacpan.org/release/RURBAN/Cpanel-JSON-X… | release-notes |
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Mitigation MIT-41
Implementation
Strategy: Libraries or Frameworks
- Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
- For example, glibc in Linux provides protection against free of invalid pointers.
- When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
- To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.
Mitigation
Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation
Architecture and Design
Build and Compilation
Consider using the Boehm-Demers-Weiser garbage collector (bdwgc), which can help avoid leaks.
No CAPEC attack patterns related to this CWE.