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.
125 vulnerabilities reference this CWE, most recent first.
CVE-2026-121391 (GCVE-0-2026-121391)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:27 – Updated: 2026-11-09 14:34
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 File Descriptor Exhaustion via Parallel CREATE
Summary
FreeRDP from 3.0.0 before 3.32.2 contains a file descriptor leak in parallel_process_irp_create that fails to close previous descriptors on repeated IRP_MJ_CREATE requests. A hostile RDP server with parallel-device redirection enabled can send repeated CREATE requests to exhaust the client descriptor table and crash the process.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 14:34 UTC
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-19 00:00
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CVE-2026-119636 (GCVE-0-2026-119636)
Vulnerability from cvelistv5 – Published: 2026-11-03 20:39 – Updated: 2026-11-06 19:37
VLAI
EPSS
VEX
Summary
Improper release of expired privileged access checkouts in the PAM scheduled check-in task in Devolutions Server 2025.3.2.0 through 2026.2.22.0 allows an authenticated user with checkout rights on a PAM account to retain access to that account on the target system after the checkout expires via a backlog of 21 or more newer active checkouts that prevents the expired checkout from being checked in and its password from being rotated.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 19:37 UTC
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
DEVOLUTIONS
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Devolutions | Server |
Affected:
2025.3.2.0 , < 2026.2.23.0
(custom)
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CVE-2026-118262 (GCVE-0-2026-118262)
Vulnerability from cvelistv5 – Published: 2026-10-28 19:00 – Updated: 2026-11-03 13:24
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
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 13:24 UTC
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
GitHub_M
CNA
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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CVE-2026-115793 (GCVE-0-2026-115793)
Vulnerability from cvelistv5 – Published: 2026-10-29 15:44 – Updated: 2026-11-05 21:32
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
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 21:31 UTC
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
rt-labs
CNA
References
1 reference
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CVE-2026-115215 (GCVE-0-2026-115215)
Vulnerability from cvelistv5 – Published: 2026-11-02 21:43 – Updated: 2026-11-06 17:58
VLAI
EPSS
VEX
Title
NetX Secure DTLS server allocates a session for each new source before the cookie exchange and never reclaims it, so spoofed datagrams exhaust the session pool
Summary
In Eclipse ThreadX NetX Duo versions 6.0 through 6.5.2.202603a, the NetX Secure DTLS server allocates a session from its fixed session pool for the first datagram from any unrecognised address and port, before the cookie exchange, and never releases a session whose handshake stalls. A remote, unauthenticated attacker can exhaust the pool with one spoofed datagram per source and deny DTLS service to legitimate clients until the application resets the sessions.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 17:58 UTC
CWE
Assigner
eclipse
CNA
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX |
Affected:
6.0 , ≤ 6.5.2.202603a
(custom)
|
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CVE-2026-114236 (GCVE-0-2026-114236)
Vulnerability from cvelistv5 – Published: 2026-10-21 08:04 – Updated: 2026-11-06 17:52
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
redhat
CNA
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-2026-112323 (GCVE-0-2026-112323)
Vulnerability from cvelistv5 – Published: 2026-11-09 18:43 – Updated: 2026-11-09 18:43
VLAI
EPSS
VEX
Title
Krb5: mit krb5 kadmind unauthenticated memory exhaustion via failed auth_gssapi_init requests
Summary
The AUTH_GSSAPI handler in lib/rpc/svc_auth_gssapi.c in MIT Kerberos 5 (aka krb5) 1.5.2 and later allows remote attackers to cause a denial of service (memory exhaustion in kadmind) by sending repeated failed AUTH_GSSAPI_INIT requests. Each failed request allocates client state that is only freed after a 15-minute expiration timeout, allowing an attacker to accumulate memory faster than it is reclaimed.
Severity
7.5 (High)
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
redhat
CNA
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-112323 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2478440 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/a:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/a:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/a:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1
|
Date Public
2026-11-09 15:00
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CVE-2026-112321 (GCVE-0-2026-112321)
Vulnerability from cvelistv5 – Published: 2026-11-09 19:08 – Updated: 2026-11-09 23:02
VLAI
EPSS
VEX
Title
Krb5: mit krb5 kadmind unauthenticated memory leak dos via auth_gssapi_init error paths
Summary
The AUTH_GSSAPI handler in lib/rpc/svc_auth_gssapi.c in MIT Kerberos 5 (aka krb5) does not free decoded arguments on certain error paths, which allows remote attackers to cause a denial of service (memory exhaustion in kadmind) via crafted AUTH_GSSAPI_INIT requests that trigger authentication failures.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 23:02 UTC
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
redhat
CNA
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-112321 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2478448 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/a:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/a:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/a:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1
|
Date Public
2026-11-09 15:00
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CVE-2026-112320 (GCVE-0-2026-112320)
Vulnerability from cvelistv5 – Published: 2026-11-09 19:08 – Updated: 2026-11-09 19:08
VLAI
EPSS
VEX
Title
Krb5: mit krb5 kadmind unauthenticated memory leak dos via gss-rpc auth flavor switching
Summary
The GSS-RPC transport layer in MIT Kerberos 5 (aka krb5) 1.4 and later does not release the previous authentication context when a client switches from an RPCSEC_GSS or AUTH_GSSAPI flavor to a non-GSS flavor on the same TCP connection. This allows remote attackers to cause a denial of service (memory exhaustion in kadmind) by repeatedly establishing and abandoning GSS authentication contexts.
Severity
7.5 (High)
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
redhat
CNA
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-112320 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2478449 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/a:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/a:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/a:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1
|
Date Public
2026-11-09 15:00
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CVE-2026-112317 (GCVE-0-2026-112317)
Vulnerability from cvelistv5 – Published: 2026-11-09 19:07 – Updated: 2026-11-09 19:07
VLAI
EPSS
VEX
Title
Krb5: mit krb5 kdc unauthenticated memory leak dos in kdb keytab key decryption error path
Summary
krb5_ktkdb_get_entry() in lib/kdb/keytab.c in MIT Kerberos 5 (aka krb5) 1.2.8 and later does not free decrypted key material when a post-decryption check fails, which allows remote attackers to cause a denial of service (memory leak in the KDC or kadmind) via requests that repeatedly trigger key decryption failures.
Severity
5.3 (Medium)
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
redhat
CNA
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-112317 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2479209 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/a:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/a:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/a:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1
|
Date Public
2026-11-09 15:00
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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.