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Common Weakness Enumeration

CWE-789

Allowed

Memory Allocation with Excessive Size Value

Abstraction: Variant · Status: Draft

The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.

432 vulnerabilities reference this CWE, most recent first.

CVE-2026-66485 (GCVE-0-2026-66485)

Vulnerability from cvelistv5 – Published: 2026-08-10 10:25 – Updated: 2026-08-10 10:56 X_Open Source
VLAI
Title
Uncontrolled Memory Allocation in GNU cpio
Summary
GNU cpio is vulnerable to an uncontrolled memory allocation in the make_path function at src/makepath.c. The function uses alloca to allocate stack memory based on the length of argpath, which is derived from an archive-controlled pathname during extraction. A malicious cpio archive containing a sufficiently long nested pathname causes an unbounded stack allocation, resulting in a stack overflow and crash of the cpio process. An attacker who can supply a crafted cpio archive to a victim who extracts it can cause a denial of service. This issue has been fixed in commit 3cd514031371d8aeeaf2048aa10103e02831aaa9
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 10:56 UTC
CWE
  • CWE-789 - Memory allocation with excessive size value
References
Impacted products
Vendor Product Version
GNU cpio Affected: 0 , ≤ 2.15 (custom)
    cpe:2.3:a:gnu:cpio:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-66273 (GCVE-0-2026-66273)

Vulnerability from cvelistv5 – Published: 2026-08-05 05:23 – Updated: 2026-08-06 13:48
VLAI
Title
Apache Qpid Proton-J: Type size/count handling can lead to excessive allocation pre-authentication
Summary
A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the issue.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 13:48 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Impacted products
Vendor Product Version
Apache Software Foundation Apache Qpid Proton-J Affected: 0 , ≤ 0.34.1 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-65315 (GCVE-0-2026-65315)

Vulnerability from cvelistv5 – Published: 2026-07-21 21:18 – Updated: 2026-07-28 01:06
VLAI
Title
Ollama Remote Denial of Service via Attacker-Controlled Allocation in GGUF Metadata Parser
Summary
Ollama (HEAD f0078ae) contains an uncontrolled memory allocation vulnerability in the GGUF metadata parser that allows remote attackers to crash the server by supplying a crafted GGUF file with attacker-controlled length and count fields in string lengths, tensor dimension counts, and metadata array counts that are used as allocation sizes without validation against remaining file size. Attackers can upload a sub-1KB crafted GGUF file via the blob upload and model create or pull API endpoints to trigger unrecoverable Go runtime out-of-memory fatal errors or makeslice panics that bypass recovery middleware and crash the entire server process.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-22 18:21 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Impacted products
Vendor Product Version
Ollama Ollama Affected: 0 , ≤ f0078ae (git)
    cpe:2.3:a:ollama:ollama:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-21 00:00
Show details on NVD website

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CVE-2026-61485 (GCVE-0-2026-61485)

Vulnerability from cvelistv5 – Published: 2026-08-05 06:43 – Updated: 2026-09-04 15:57
VLAI

this attack requires control over the search index, which is considered fully trusted by Lucy.

Show details on NVD website

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CVE-2026-59938 (GCVE-0-2026-59938)

Vulnerability from cvelistv5 – Published: 2026-07-08 17:24 – Updated: 2026-07-09 13:58
VLAI
Title
pypdf: Possible large memory usage for wrong image dimensions
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.14.0, an attacker can craft a PDF with declared image size values that are much too large compared to the actual data, causing large memory usage in pypdf image parsing. This issue is fixed in version 6.14.0.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:58 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Impacted products
Vendor Product Version
py-pdf pypdf Affected: < 6.14.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-59844 (GCVE-0-2026-59844)

Vulnerability from cvelistv5 – Published: 2026-07-21 11:32 – Updated: 2026-09-01 20:01
VLAI
Title
Libssh: libssh: denial of service via oversized sftp read length
Summary
A flaw was found in libssh. A remote authenticated client can issue SSH_FXP_READ requests with an arbitrarily large length, causing a libssh SFTP server to allocate excessive memory and potentially exhaust it through repeated requests.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-21 13:11 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:42922 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55855 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:62217 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:62218 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-59844 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2498177 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:0.12.0-3.el10_2 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.2
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:0.9.6-17.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
    cpe:/o:redhat:enterprise_linux:8::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:0.10.4-19.el9_8 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
Create a notification for this product.
Red Hat Red Hat Hardened Images Unaffected: 0.12.1-4.hum1 , < * (rpm)
    cpe:/a:redhat:hummingbird:1
Create a notification for this product.
Date Public
2026-07-21 11:17
Show details on NVD website

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CVE-2026-59649 (GCVE-0-2026-59649)

Vulnerability from cvelistv5 – Published: 2026-08-03 00:44 – Updated: 2026-08-03 13:33
VLAI
Title
OpenPGP user-attribute subpacket length bounded only by JVM max memory
Summary
In Bouncy Castle for Java before 1.85, OpenPGP user-attribute subpacket length bounded only by JVM max memory. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 1.0.13 (1.0.X series), 2.0.13 (2.0.X series) and 2.1.13 (2.1.X series).
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 13:33 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Impacted products
Vendor Product Version
Legion of the Bouncy Castle Inc. BC-JAVA Affected: 0 , < 1.85 (maven)
Create a notification for this product.
Legion of the Bouncy Castle Inc. BC-LTS-JAVA Affected: 2.73.0 , < 2.73.12 (maven)
Create a notification for this product.
Legion of the Bouncy Castle Inc. BC-FJA Affected: 1.0.0 , < 1.0.13 (maven)
Affected: 2.0.0 , < 2.0.13 (maven)
Affected: 2.1.0 , < 2.1.13 (maven)
Create a notification for this product.
Show details on NVD website

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CVE-2026-59646 (GCVE-0-2026-59646)

Vulnerability from cvelistv5 – Published: 2026-08-03 00:48 – Updated: 2026-08-03 14:53
VLAI
Title
DTLS handshake reassembler allocates buffer from unchecked 24-bit length
Summary
In Bouncy Castle for Java before 1.85, DTLS handshake reassembler allocates buffer from unchecked 24-bit length. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bctls-fips 1.0.24 (1.0.X series), 2.0.24 (2.0.X series) and 2.1.24 (2.1.X series).
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 14:52 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Impacted products
Vendor Product Version
Legion of the Bouncy Castle Inc. BC-JAVA Affected: 0 , < 1.85 (maven)
Create a notification for this product.
Legion of the Bouncy Castle Inc. BC-LTS-JAVA Affected: 2.73.0 , < 2.73.12 (maven)
Create a notification for this product.
Legion of the Bouncy Castle Inc. BC-FJA Affected: 1.0.0 , < 1.0.24 (maven)
Affected: 2.0.0 , < 2.0.24 (maven)
Affected: 2.1.0 , < 2.1.24 (maven)
Create a notification for this product.
Show details on NVD website

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CVE-2026-59204 (GCVE-0-2026-59204)

Vulnerability from cvelistv5 – Published: 2026-07-14 15:38 – Updated: 2026-07-21 18:41
VLAI
Title
Pillow JPEG2000 tiled decode retains a growing scratch buffer and can be used for denial of service
Summary
Pillow is a Python imaging library. From 8.2.0 through 12.2.0, src/libImaging/Jpeg2KDecode.c accumulates total_component_width across every tile in a JPEG2000 image instead of recomputing it per tile, allowing a crafted tiled JPEG2000 file to force substantially higher transient memory usage and trigger out-of-memory failures during decoding. This issue is fixed in version 12.3.0.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-21 18:40 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Impacted products
Vendor Product Version
python-pillow Pillow Affected: >= 8.2.0, < 12.3.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-58559 (GCVE-0-2026-58559)

Vulnerability from cvelistv5 – Published: 2026-07-15 12:42 – Updated: 2026-07-15 13:03
VLAI
Summary
DoS vulnerability in the vibration service. Impact: Successful exploitation of this vulnerability may affect availability.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 13:03 UTC
CWE
  • CWE-789 - Memory allocation with excessive size value
Impacted products
Vendor Product Version
Huawei Harmony OS Affected: 4.3.1
Affected: 4.3.0
Affected: 4.2.0
Affected: 4.0.0
Create a notification for this product.
Huawei EMUI Affected: 15.0.0
Affected: 14.2.0
Affected: 14.0.0
Create a notification for this product.
Show details on NVD website

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Mitigation
Implementation Architecture and Design

Perform adequate input validation against any value that influences the amount of memory that is allocated. Define an appropriate strategy for handling requests that exceed the limit, and consider supporting a configuration option so that the administrator can extend the amount of memory to be used if necessary.

Mitigation
Operation

Run your program using system-provided resource limits for memory. This might still cause the program to crash or exit, but the impact to the rest of the system will be minimized.

No CAPEC attack patterns related to this CWE.