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Common Weakness Enumeration

CWE-401

Allowed

Missing Release of Memory after Effective Lifetime

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

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-2026-67437 (GCVE-0-2026-67437)

Vulnerability from cvelistv5 – Published: 2026-07-29 20:43 – Updated: 2026-07-30 14:15
VLAI
Title
OliveTin: Unauthenticated DoS via OAuth2 State Memory Exhaustion (Unbounded Map Growth)
Summary
OliveTin gives access to predefined shell commands from a web interface. From 3000.0.0 until 3000.17.0, the service/internal/auth/otoauth2/restapi_auth_oauth2.go OAuth2 login handler stores per-login state in the registeredStates map on every /oauth/login request without expiring, deleting, or bounding entries, allowing an unauthenticated attacker to exhaust memory and cause a denial of service. This issue is fixed in version 3000.17.0.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 14:15 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-401 - Missing Release of Memory after Effective Lifetime
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
OliveTin OliveTin Affected: >= 3000.0.0, < 3000.17.0
Create a notification for this product.
Show details on NVD website
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CVE-2026-67430 (GCVE-0-2026-67430)

Vulnerability from cvelistv5 – Published: 2026-07-29 19:10 – Updated: 2026-07-30 15:19
VLAI
Title
MCP Ruby SDK: Unbounded session retention in StreamableHTTPTransport allows memory exhaustion via initialize flood
Summary
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Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 14:16 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-67183 (GCVE-0-2026-67183)

Vulnerability from cvelistv5 – Published: 2026-07-28 16:26 – Updated: 2026-07-28 17:22 X_Open Source
VLAI
Title
TinyWeb 0.0.8 Memory Leak DoS via HTTP Request Handling
Summary
TinyWeb through 0.0.8 contains a memory leak vulnerability that allows unauthenticated attackers to exhaust available memory by sending ordinary well-formed HTTP requests. Each request causes HttpParser::execute() to allocate Url objects, HttpHeaders objects, and HttpHeader instances via raw new expressions that are never freed due to missing destructors and unreachable delete calls, causing worker resident memory to grow monotonically by approximately 20 to 28 kB per request until the worker process is killed.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 17:22 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version
GeneralSandman TinyWeb Affected: e48f15d38d2bebeec9cabcfdde81931b10a1963b , ≤ a381da252fe8e873c8aff22703040426cc9b2ae0 (git)
Affected: 0.0.8 (semver)
Create a notification for this product.
Date Public
2026-07-26 00:00
Credits
Theodosis Paidakis
Show details on NVD website
To clipboard 

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CVE-2026-66011 (GCVE-0-2026-66011)

Vulnerability from cvelistv5 – Published: 2026-07-25 10:45 – Updated: 2026-07-27 16:18
VLAI
Title
ImageMagick before 7.1.2-27 Memory Leak via Invalid CLI Options
Summary
ImageMagick before 7.1.2-27 contains a memory leak vulnerability in the magick command-line interface when invalid options are provided. Attackers can trigger memory exhaustion by repeatedly supplying malformed command-line arguments to consume system resources.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-27 16:13 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version
ImageMagick ImageMagick Affected: 0 , < 7.1.2-27 (semver)
Unaffected: 7.1.2-27 (semver)
    cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-12 00:00
Credits
007bsd
Show details on NVD website
To clipboard 

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CVE-2026-63448 (GCVE-0-2026-63448)

Vulnerability from cvelistv5 – Published: 2026-09-18 20:20 – Updated: 2026-09-18 20:20
VLAI
Title
Suricata smb: some SMB flows can cause resource exhaustion
Summary
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.17 and 8.0.6, the SMB parser can retain force-completed transactions on flows where Suricata sees payload in only one direction, including async-oneside flows, because cleanup waits for inspection in the unseen direction. The transaction creation paths in rust/src/smb can exceed the intended SMB_MAX_TX bound, and cleanup repeatedly scans the growing list. Sustained one-directional SMB traffic can therefore cause unbounded per-flow state and CPU and memory exhaustion. This issue is fixed in versions 8.0.6 and 7.0.17.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-401 - Missing Release of Memory after Effective Lifetime
  • CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
Impacted products
Vendor Product Version
OISF suricata Affected: >= 8.0.0, < 8.0.6
Affected: < 7.0.17
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-63446 (GCVE-0-2026-63446)

Vulnerability from cvelistv5 – Published: 2026-09-18 20:22 – Updated: 2026-09-18 20:22
VLAI
Title
Suricata app-layer: passed flows can retain transactions, causing resource exhaustion
Summary
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, AppLayerParserSetTransactionInspectId() in src/app-layer-parser.c uses an inverted guard and marks only already-inspected transactions as inspected. On flows passed by a pass rule or pass-the-flow exception policy, detection is skipped, so completed transactions remain unmarked, are never freed, and are repeatedly rescanned. The per-flow list can grow without bound with quadratic cleanup cost, causing CPU and memory exhaustion. This issue is fixed in version 8.0.6.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
  • CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
Impacted products
Vendor Product Version
OISF suricata Affected: >= 8.0.0, < 8.0.6
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-63252 (GCVE-0-2026-63252)

Vulnerability from cvelistv5 – Published: 2026-08-04 12:03 – Updated: 2026-08-04 15:02
VLAI
Summary
In Eclipse Milo versions 0.6.0 through 1.1.4, UASC server transport handlers fail to release retained partial message chunks when a channel disconnects, allowing a remote unauthenticated client to exhaust pooled direct memory by repeatedly sending incomplete chunks and disconnecting, potentially terminating the server.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 14:28 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Eclipse Foundation Eclipse Milo Affected: 0.6.0 , ≤ 1.1.4 (semver)
Create a notification for this product.
Credits
Abhinav Agarwal (GitHub: @abhinavagarwal07)
Show details on NVD website
To clipboard 

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CVE-2026-63128 (GCVE-0-2026-63128)

Vulnerability from cvelistv5 – Published: 2026-09-16 14:49 – Updated: 2026-09-16 15:18
VLAI
Title
RMCP: Unauthenticated permanent session-table leak in rmcp Streamable HTTP server transport leads to remote denial-of-service
Summary
RMCP is an official Rust SDK for the Model Context Protocol. Prior to 2.0.0, the rmcp crate's stateful Streamable HTTP server in crates/rmcp/src/transport/streamable_http_server/tower.rs allows an unauthenticated client to send a well-formed JSON-RPC POST that is not an initialization request, or an initialization request with a mismatched protocol header, causing StreamableHttpService::handle_post to call LocalSessionManager.create_session before validating the message. An early validation failure returns without removing the inserted LocalSessionHandle from LocalSessionManager.sessions, permanently retaining session and channel state for the server process lifetime. Repeated requests can grow the shared session table without bound, degrade legitimate-client latency through lock contention, exhaust memory, and terminate the server. This issue is fixed in version 2.0.0.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 15:18 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-401 - Missing Release of Memory after Effective Lifetime
  • CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-61872 (GCVE-0-2026-61872)

Vulnerability from cvelistv5 – Published: 2026-07-15 11:25 – Updated: 2026-07-15 13:24
VLAI
Title
ImageMagick before 7.1.2-26 Memory Leak via TIFF Encoder
Summary
ImageMagick before 7.1.2-26 and 6.9.13-51 contains a memory leak in the TIFF encoder when an invalid tiff:tile-geometry is specified. Supplying malformed tile geometry parameters causes allocated memory not to be released, which can lead to increased memory consumption.
Severity
2 (Low)
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
2.5 (Low)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 13:19 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version
ImageMagick ImageMagick Affected: 0 , < 7.1.2-26 (semver)
Unaffected: 7.1.2-26 (semver)
Create a notification for this product.
ImageMagick ImageMagick Affected: 0 , < 6.9.13-51 (semver)
Unaffected: 6.9.13-51 (semver)
Create a notification for this product.
Date Public
2026-06-26 00:00
Credits
Bin-infinite
Show details on NVD website
To clipboard 

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CVE-2026-61871 (GCVE-0-2026-61871)

Vulnerability from cvelistv5 – Published: 2026-07-15 11:25 – Updated: 2026-07-15 12:04
VLAI
Title
ImageMagick before 7.1.2-26 Memory Leak in ICON decoder
Summary
ImageMagick before 7.1.2-26 and 6.9.13-51 contains a memory leak in the ICON decoder that occurs when a memory allocation fails. Processing a crafted ICON file that triggers an allocation failure leaks memory, which may lead to a denial of service.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 12:04 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version
ImageMagick ImageMagick Affected: 0 , < 7.1.2-26 (semver)
Unaffected: 7.1.2-26 (semver)
Create a notification for this product.
ImageMagick ImageMagick Affected: 0 , < 6.9.13-51 (semver)
Unaffected: 6.9.13-51 (semver)
Create a notification for this product.
Date Public
2026-06-26 00:00
Show details on NVD website
To clipboard 

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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.

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