Common Weakness Enumeration
CWE-772
AllowedMissing Release of Resource after Effective Lifetime
Abstraction: Base · Status: Draft
The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.
653 vulnerabilities reference this CWE, most recent first.
CVE-2026-118262 (GCVE-0-2026-118262)
Vulnerability from cvelistv5 – Published: 2026-10-28 19:00 – Updated: 2026-10-28 19:00
VLAI
EPSS
VEX
Title
Echo: WebSocket proxy can retain connections and handlers after client disconnect
Summary
Echo is a Go web framework. From 4.15.0 until 4.16.1 and 5.4.1, Echo's Proxy middleware can retain a handler, copy goroutines, and network connections after a WebSocket client disconnects when the upstream keeps its connection open. The raw proxy waits for both copy directions without reliably closing the peer connection when one direction ends, including when a rejected upgrade response uses HTTP keep-alive. Repeated connections can accumulate resources and cause denial of service, depending on proxy-route accessibility, upstream behavior, and connection deadlines. This issue is fixed in 4.16.1 and 5.4.1.
Severity
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/labstack/echo/security/advisor… | x_refsource_CONFIRM |
| https://github.com/labstack/echo/commit/1855061e5… | x_refsource_MISC |
| https://github.com/labstack/echo/commit/3fb0ba7e1… | x_refsource_MISC |
| https://github.com/labstack/echo/releases/tag/v4.16.1 | x_refsource_MISC |
| https://github.com/labstack/echo/releases/tag/v5.4.1 | x_refsource_MISC |
Impacted products
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}
]
}
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}
],
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"baseScore": 8.2,
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CVE-2026-115793 (GCVE-0-2026-115793)
Vulnerability from cvelistv5 – Published: 2026-10-29 15:44 – Updated: 2026-10-29 15:44
VLAI
EPSS
VEX
Title
Resource exhaustion from RPC sessions kept for requests to unknown interface
Summary
P-Net before 1.0.3 does not release the RPC session allocated for an RPC request that names an unknown interface or object UUID, and does not start a timeout for it. Repeated requests with different activity UUIDs exhaust the available sessions. Once they are exhausted the device no longer answers new RPC requests, including Endpoint Mapper Lookup and Connect, until it is restarted. A remote unauthenticated attacker can use this to cause a denial of service.
Severity
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
1 reference
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CVE-2026-114236 (GCVE-0-2026-114236)
Vulnerability from cvelistv5 – Published: 2026-10-21 08:04 – Updated: 2026-10-30 08:22
VLAI
EPSS
VEX
Title
Podman: goroutine/file-descriptor leak in storage/pkg/archive.applylayer and applyuncompressedlayer on malformed layers
Summary
storage/pkg/archive.ApplyLayer and ApplyUncompressedLayer may, when processing corrupt or malicious inputs, leak a file descriptor; unbounded repeated calls can exhaust the process’ file descriptor
limit
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-28 16:22 UTC
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-114236 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2558105 | issue-trackingx_refsource_REDHAT |
Impacted products
22 products
Date Public
2026-10-21 00:00
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CVE-2026-112200 (GCVE-0-2026-112200)
Vulnerability from cvelistv5 – Published: 2026-10-29 15:42 – Updated: 2026-10-29 15:42
VLAI
EPSS
VEX
Title
Resource exhaustion from unreleased AR and RPC session on RPC requests with incorrect endianness
Summary
P-Net before 1.0.3 does not release the Application Relationship (AR) and the RPC session when an RPC request is rejected because its data representation has incorrect endianness. The session and its AR remain allocated, so repeated requests exhaust the available sessions. Once they are exhausted the device no longer answers new RPC requests, including Connect, until it is restarted. A remote unauthenticated attacker can use this to cause a denial of service.
Severity
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
1 reference
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CVE-2026-107834 (GCVE-0-2026-107834)
Vulnerability from cvelistv5 – Published: 2026-10-09 17:41 – Updated: 2026-10-13 20:26
VLAI
EPSS
VEX
Title
OWASP Coraza WAF: Resource exhaustion via deferred file handle accumulation in multipart body processor
Summary
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, the multipart loop in internal/bodyprocessors/multipart.go executes defer temp.Close() for every uploaded file part, so each temporary-file descriptor remains open until the complete request returns. An unauthenticated attacker can submit a multipart body containing many minimal file parts and exhaust the process file-descriptor table within the request-body size limit, causing os.CreateTemp failures, MULTIPART_STRICT_ERROR responses, blocked legitimate uploads, and process-wide inability to open files or sockets. This issue is fixed in version 3.8.0.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 20:19 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/corazawaf/coraza/security/advi… | x_refsource_CONFIRM |
| https://github.com/corazawaf/coraza/commit/1bc390… | x_refsource_MISC |
| https://github.com/corazawaf/coraza/releases/tag/v3.8.0 | x_refsource_MISC |
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CVE-2026-107286 (GCVE-0-2026-107286)
Vulnerability from cvelistv5 – Published: 2026-10-08 15:12 – Updated: 2026-10-08 17:27
VLAI
EPSS
VEX
Title
Pydantic AI: Concurrency-limited models can keep their slot when a streamed request ends early
Summary
Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 2.10.0 until 2.53.0, streamed requests made through ConcurrencyLimitedModel or limit_model_concurrency can retain shared concurrency slots because anyio.CapacityLimiter associates an acquired slot with the borrowing task while streaming cleanup can run in a different task. Early stream termination, cancellation, consumer exceptions, or complete stream_text() consumption with debounce_by=0.1 can therefore leave capacity occupied, eventually preventing later requests that share the long-lived limiter from proceeding and causing a denial of service. Agent-level max_concurrency and non-streaming model requests are not affected. This issue is fixed in version 2.53.0.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 17:26 UTC
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/pydantic/pydantic-ai/security/… | x_refsource_CONFIRM |
| https://github.com/pydantic/pydantic-ai/pull/9478 | x_refsource_MISC |
| https://github.com/pydantic/pydantic-ai/commit/45… | x_refsource_MISC |
| https://github.com/pydantic/pydantic-ai/releases/… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| pydantic | pydantic-ai |
Affected:
>= 2.10.0, < 2.53.0
|
|
| pydantic | pydantic-ai-slim |
Affected:
>= 2.10.0, < 2.53.0
|
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CVE-2026-104112 (GCVE-0-2026-104112)
Vulnerability from cvelistv5 – Published: 2026-10-09 14:19 – Updated: 2026-10-09 16:45
VLAI
EPSS
VEX
Title
Missing release of passed file descriptors in illumos nscd allows local users to exhaust kernel memory
Summary
A missing release of resources in the illumos name service cache daemon (nscd) allows a local user to exhaust kernel memory. The nscd door server procedure, switcher() in usr/src/cmd/nscd/nscd_frontend.c, does not close file descriptors that are passed with a door call but not used by the request, and the main nscd door at /var/run/name_service_door accepts passed descriptors from any user in its zone. Because nscd also runs with an unlimited file descriptor limit, an unprivileged local user, including one in a non-global zone, can repeatedly pass a descriptor to its zone's nscd in a door_call() loop, causing the file descriptor table of nscd to grow without bound in kernel memory. This causes a denial of service of nscd and can render processes in all zones on the host unresponsive. The flaw has existed since 2006 (illumos-gate commit cb5caa98), and affects any illumos distribution prior to illumos-gate commit af810a72.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 16:15 UTC
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://illumos.topicbox.com/groups/developer/T3b… | mailing-list |
| https://illumos.org/issues/18494 | issue-tracking |
| https://github.com/illumos/illumos-gate/commit/af… | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| illumos | illumos-gate |
Affected:
cb5caa98562cf06753163f558cbcfe30b8f4673a , < af810a72c09944e884ec695e8dbf1702a4f424ae
(git)
|
|
| OmniOS | OmniOS |
Affected:
any , < r151054
(custom)
Affected: r151058 , < r151058w (custom) Affected: r151056 , < r151056aw (custom) Affected: r151054 , < r151054bw (custom) |
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CVE-2026-104045 (GCVE-0-2026-104045)
Vulnerability from cvelistv5 – Published: 2026-10-06 20:37 – Updated: 2026-10-16 10:57
VLAI
EPSS
VEX
Title
Sssd: sssd: denial of service via race condition in autofs responder
Summary
A flaw was found in SSSD. A local user can trigger a Denial of Service (DoS) by exploiting a race condition in the autofs responder between asynchronous enumeration completion and map invalidation. By repeatedly sending concurrent map enumeration and invalidation requests, an attacker can cause memory to leak, leading to excessive memory consumption that can disrupt or crash the autofs service.
Severity
4.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 15:22 UTC
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-104045 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2478663 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-10-06 18:38
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CVE-2026-104035 (GCVE-0-2026-104035)
Vulnerability from cvelistv5 – Published: 2026-10-06 00:12 – Updated: 2026-10-16 10:57
VLAI
EPSS
VEX
Title
Sssd: sssd: denial of service via memory exhaustion in kcm responder
Summary
A flaw was found in SSSD. An issue in the Kerberos Credential Manager (KCM) responder allows a local user to cause a Denial of Service (DoS) by maintaining a persistent connection and repeatedly storing and destroying credentials. Because the service fails to release cached objects from memory when credentials are removed, memory consumption grows continuously, ultimately exhausting available memory and rendering the service unresponsive.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 02:38 UTC
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-104035 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2479107 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-10-05 23:47
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CVE-2026-104031 (GCVE-0-2026-104031)
Vulnerability from cvelistv5 – Published: 2026-10-06 00:10 – Updated: 2026-10-16 10:57
VLAI
EPSS
VEX
Title
Sssd: sssd: denial of service via memory exhaustion in autofs responder
Summary
A flaw was found in SSSD. In configurations where the autofs responder service is enabled, memory allocated during successful request processing is not released until the client connection terminates. A local attacker can exploit this vulnerability by maintaining an open connection and repeatedly submitting valid requests, leading to memory exhaustion and a Denial of Service (DoS).
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 13:01 UTC
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-104031 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2479418 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-10-05 21:45
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Mitigation MIT-3
Requirements
Strategy: Language Selection
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, languages such as Java, Ruby, and Lisp perform automatic garbage collection that releases memory for objects that have been deallocated.
Mitigation
Implementation
It is good practice to be responsible for freeing all resources you allocate and to be consistent with how and where you free resources in a function. If you allocate resources that you intend to free upon completion of the function, you must be sure to free the resources at all exit points for that function including error conditions.
Mitigation MIT-47
Operation
Architecture and Design
Strategy: Resource Limitation
- Use resource-limiting settings provided by the operating system or environment. For example, when managing system resources in POSIX, setrlimit() can be used to set limits for certain types of resources, and getrlimit() can determine how many resources are available. However, these functions are not available on all operating systems.
- When the current levels get close to the maximum that is defined for the application (see CWE-770), then limit the allocation of further resources to privileged users; alternately, begin releasing resources for less-privileged users. While this mitigation may protect the system from attack, it will not necessarily stop attackers from adversely impacting other users.
- Ensure that the application performs the appropriate error checks and error handling in case resources become unavailable (CWE-703).
CAPEC-469: HTTP DoS
An attacker performs flooding at the HTTP level to bring down only a particular web application rather than anything listening on a TCP/IP connection. This denial of service attack requires substantially fewer packets to be sent which makes DoS harder to detect. This is an equivalent of SYN flood in HTTP. The idea is to keep the HTTP session alive indefinitely and then repeat that hundreds of times. This attack targets resource depletion weaknesses in web server software. The web server will wait to attacker's responses on the initiated HTTP sessions while the connection threads are being exhausted.