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.
2148 vulnerabilities reference this CWE, most recent first.
CVE-2026-93436 (GCVE-0-2026-93436)
Vulnerability from cvelistv5 – Published: 2026-09-17 22:15 – Updated: 2026-09-17 22:15
VLAI
EPSS
VEX
Title
vLLM through 0.29.0 Memory Exhaustion via Rejected Requests
Summary
vLLM through 0.29.0 fails to properly clean up decode-side metadata for rejected inference requests in prefill/decode disaggregated deployments. Remote attackers can submit requests with max_tokens=0 to exhaust decode-worker memory without bound until the worker restarts.
Severity
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/vllm-project/vllm/pull/55677 | issue-trackingpatch |
| https://github.com/vllm-project/vllm/blob/v0.29.0… | technical-description |
| https://github.com/vllm-project/vllm | product |
| https://www.vulncheck.com/advisories/vllm-through… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| vllm-project | vllm |
Affected:
0 , ≤ 0.29.0
(semver)
cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:* |
Date Public
2026-09-07 00:00
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CVE-2026-92230 (GCVE-0-2026-92230)
Vulnerability from cvelistv5 – Published: 2026-09-17 18:38 – Updated: 2026-09-18 13:33
VLAI
EPSS
VEX
Title
Apache Karaf: Improper release of ClassLoader references via static ThreadLocal caching
Summary
Apache Karaf's XmlUtils cached XML parser/transformer factories in static ThreadLocal fields on long-lived container threads. Because a ThreadLocal value outlives the OSGi bundle that created it, repeated bundle or feature install, update, or refresh operations can leave successive bundle ClassLoader's pinned in memory and unreachable for garbage collection, leading to unbounded Metaspace growth and eventual denial of service of the Karaf instance.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 13:32 UTC
CWE
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Karaf |
Affected:
0 , < 4.4.11
(semver)
|
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CVE-2026-91926 (GCVE-0-2026-91926)
Vulnerability from cvelistv5 – Published: 2026-09-15 11:49 – Updated: 2026-09-17 14:24
VLAI
EPSS
VEX
Title
Gss-ntlmssp: gss-ntlmssp: memory leak in ntlm_decode_target_info via duplicated av_pair entries in ntlm challenge
Summary
A flaw was found in gss-ntlmssp. A memory leak occurs in the NTLM target-info parser when a crafted NTLM CHALLENGE message contains duplicated string-valued AV_PAIR entries. The parser allocates memory for each string value but does not free the previous allocation when the same AV_PAIR type appears more than once, leaking the earlier allocation. A malicious or man-in-the-middle server can exploit this to cause gradual memory exhaustion on the client during NTLM authentication, leading to a denial of service.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 14:24 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-91926 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2533698 | issue-trackingx_refsource_REDHAT |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
Date Public
2026-09-15 00:00
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CVE-2026-90784 (GCVE-0-2026-90784)
Vulnerability from cvelistv5 – Published: 2026-09-14 13:00 – Updated: 2026-09-14 13:59 X_Open Source
VLAI
EPSS
VEX
Title
Dvidelabs flatcc semantics.c fb_clear_parser memory leak
Summary
A vulnerability has been found in Dvidelabs flatcc up to 0.6.3. The impacted element is the function fb_clear_parser of the file src/Compiler/semantics.c. The manipulation leads to memory leak. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of the patch is 8dbc3419738da066151991fd2bf1d0c85591dea2. It is suggested to install a patch to address this issue.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 13:59 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/403290 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/403290/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-90784 | third-party-advisory |
| https://vuldb.com/submit/919199 | third-party-advisory |
| https://github.com/dvidelabs/flatcc/issues/389 | exploitissue-tracking |
| https://github.com/dvidelabs/flatcc/commit/8dbc34… | patch |
| https://github.com/dvidelabs/flatcc/ | product |
Impacted products
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CVE-2026-87776 (GCVE-0-2026-87776)
Vulnerability from cvelistv5 – Published: 2026-09-11 11:24 – Updated: 2026-09-11 13:36
VLAI
EPSS
VEX
Title
compression vulnerable to Denial of Service via memory leak on premature response close
Summary
compression is a Node.js and Express compression middleware. In versions before 1.8.2, when a client aborts the connection while a compressed response is still being sent, the zlib stream created to compress that response is never destroyed, so each aborted compressed response leaks its native zlib memory. A remote unauthenticated attacker can repeatedly open requests and disconnect early, exhausting the available memory and crashing the server. All applications using compression are affected. The issue is fixed in compression 1.8.2, and users should upgrade to 1.8.2 or later.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 13:30 UTC
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| compression | compression |
Affected:
0 , < 1.8.2
(semver)
Unaffected: 1.8.2 (semver) |
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CVE-2026-86040 (GCVE-0-2026-86040)
Vulnerability from cvelistv5 – Published: 2026-09-17 15:20 – Updated: 2026-09-17 19:19
VLAI
EPSS
VEX
Title
libp2p: Unbounded RPC decode + synchronous subscription processing in @libp2p/floodsub allows unauthenticated DoS
Summary
libp2p is a JavaScript implementation of the libp2p networking stack. Prior to 11.0.26, @libp2p/floodsub accepts unauthenticated RPC frames on /floodsub/1.0.0 through PeerStreams.attachInboundStream in packages/floodsub/src/peer-streams.ts without protobuf element limits, then processRpc and processRpcSubOpt in packages/floodsub/src/floodsub.ts synchronously process the subscriptions array without a per-frame cap. A single bounded-size frame can decode into millions of empty subscription entries that block the event loop, while hundreds of thousands of unique-topic SUBSCRIBE entries allocate PeerSet objects in this.topics that are not removed after peer removal or stop. Empty entries cause CPU exhaustion but do not grow this.topics; persistent memory growth requires unique topics. The subscription path bypasses message signature validation and the message-only processing queue, allowing a remote peer to cause sustained CPU denial of service, memory exhaustion, out-of-memory termination, and node unavailability. The issue is fixed in version 11.0.26.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 17:06 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/libp2p/js-libp2p/security/advi… | x_refsource_CONFIRM |
| https://github.com/libp2p/js-libp2p/pull/3568 | x_refsource_MISC |
| https://github.com/libp2p/js-libp2p/commit/fb9e8a… | x_refsource_MISC |
| https://github.com/libp2p/js-libp2p/releases/tag/… | x_refsource_MISC |
Impacted products
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CVE-2026-81563 (GCVE-0-2026-81563)
Vulnerability from cvelistv5 – Published: 2026-09-16 14:00 – Updated: 2026-09-17 17:47
VLAI
EPSS
VEX
Title
SVCB AliasMode additional-data error leaks qpcache references
Summary
A BIND resolver encountering an SVCB/HTTPS AliasMode record referencing 14 or more SVCB/HTTPS ServiceMode records may fail to properly deallocate internal resources. If this happens repeatedly, resource exhaustion will eventually prevent the resolver from performing new recursive lookups.
This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 17:47 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-81563 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.29 | patch |
| https://downloads.isc.org/isc/bind9/9.21.26 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ISC | BIND 9 |
Affected:
9.18.0 , ≤ 9.18.50
(custom)
Affected: 9.20.0 , ≤ 9.20.27 (custom) Affected: 9.21.0 , ≤ 9.21.25 (custom) Affected: 9.18.11-S1 , ≤ 9.18.50-S1 (custom) Affected: 9.20.9-S1 , ≤ 9.20.27-S1 (custom) cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* |
Date Public
2026-09-16 00:00
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CVE-2026-79771 (GCVE-0-2026-79771)
Vulnerability from cvelistv5 – Published: 2026-08-25 15:16 – Updated: 2026-08-25 17:44
VLAI
EPSS
VEX
Title
Nokogiri before 1.19.3 Memory Leak via XSLT Transform
Summary
Nokogiri versions before 1.19.3 contain a memory leak in the XSLT Stylesheet transform method when processing Ruby strings containing null bytes. Attackers can exploit this by passing attacker-controlled input with null bytes to transform parameters, causing heap allocations to leak and enabling denial of service against long-running processes.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 17:43 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/securit… | vendor-advisory |
| https://www.vulncheck.com/advisories/nokogiri-bef… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sparklemotion | nokogiri |
Affected:
0 , < 1.19.3
(semver)
Unaffected: 1.19.3 (semver) cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:*:*:* |
Date Public
2026-04-27 00:00
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CVE-2026-78131 (GCVE-0-2026-78131)
Vulnerability from cvelistv5 – Published: 2026-09-11 01:45 – Updated: 2026-09-11 20:04
VLAI
EPSS
VEX
Summary
strongSwan 4.2.0 through 6.0.7 has a missing release of memory after its effective lifetime in the x509 plugin's attribute certificate parser.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 20:04 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| strongSwan | strongSwan |
Affected:
4.2.0 , < 6.1.0
(semver)
cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:* |
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CVE-2026-78127 (GCVE-0-2026-78127)
Vulnerability from cvelistv5 – Published: 2026-09-11 01:37 – Updated: 2026-09-11 17:22
VLAI
EPSS
VEX
Summary
libcharon in strongSwan 4.1.2 through 6.0.7 has a missing release of memory after its effective lifetime in the IKE message parser.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 17:20 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| strongSwan | strongSwan |
Affected:
4.1.2 , < 6.1.0
(semver)
cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:* |
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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.