Common Weakness Enumeration
CWE-789
AllowedMemory 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.
331 vulnerabilities reference this CWE, most recent first.
CVE-2026-62297 (GCVE-0-2026-62297)
Vulnerability from cvelistv5 – Published: 2026-10-30 20:57 – Updated: 2026-11-02 14:53
VLAI
EPSS
VEX
Title
ag-psd has uncontrolled memory allocation via declared PSD dimensions (DoS)
Summary
ag-psd is a JavaScript library for reading and writing Photoshop Document files. Before the allocation-limit remediation attempt in version 31.0.0, `readPsd()` commits image and layer buffers from attacker-declared PSD geometry before validating the declarations against the actual available data or sane allocation limits. The `psdReader.js` implementation sizes off-heap typed arrays using `width`, `height`, `channels`, `depth` and `per-layer rectangles`, so a tiny PSD declaring enormous geometry can force multi-gigabyte memory allocation before a later bounds error. The reported 52-byte input on Node 24 produced approximately 3.17 GB peak RSS before a RangeError; under memory pressure the process can be terminated before the error can be caught, and concurrent inputs can exhaust memory. Services reading untrusted PSDs are exposed to denial of service. This differs from genuinely large PSD files whose memory demand is proportional to real input content. Version 31.0.0 adds a composite-image allocation limit, but complete coverage of the separately described layer-rectangle allocation path is not established and requires curator residual/scope review.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 14:52 UTC
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/Agamnentzar/ag-psd/security/ad… | x_refsource_CONFIRM |
| https://github.com/Agamnentzar/ag-psd/commit/2d7d… | x_refsource_MISC |
| https://github.com/Agamnentzar/ag-psd/tree/31.0.0 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Agamnentzar | ag-psd |
Affected:
< 31.0.0
|
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CVE-2026-62254 (GCVE-0-2026-62254)
Vulnerability from cvelistv5 – Published: 2026-10-30 20:36 – Updated: 2026-10-30 22:12
VLAI
EPSS
VEX
Title
LibreDWG: excessive class-decoding reallocation in R13-R2000 DWG parsing
Summary
LibreDWG is a free C library to read and write DWG files. Prior to 0.14, a specially crafted R13-R2000 DWG can trigger algorithmic resource exhaustion in `decode_R13_R2000` in `src/decode.c`. The class-decoding loop performs `realloc` on every iteration without a sanity check on `num_classes`. Manipulating that field forces an extremely slow allocation loop and denial of service when the file is parsed. Running the parser in a sandbox with memory limits is a workaround rather than a remediation. This issue is fixed in version 0.14.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 21:18 UTC
CWE
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/LibreDWG/libredwg/security/adv… | x_refsource_CONFIRM |
| https://github.com/LibreDWG/libredwg/issues/1261 | x_refsource_MISC |
| https://github.com/LibreDWG/libredwg/commit/9de89… | x_refsource_MISC |
| https://github.com/LibreDWG/libredwg/releases/tag/0.14 | x_refsource_MISC |
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CVE-2026-61845 (GCVE-0-2026-61845)
Vulnerability from cvelistv5 – Published: 2026-10-30 18:41 – Updated: 2026-10-30 19:41
VLAI
EPSS
VEX
Title
Crass: Large numeric exponents cause CPU and memory denial of service
Summary
Crass is a Ruby CSS parser that's fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, Crass converts `CSS scientific notation` number values with unbounded exponentiation before clamping the result to `Float::MAX`. Applications that use Crass to parse attacker-controlled CSS strings can be forced to spend disproportionate CPU and memory parsing a tiny input, potentially resulting in a crash. This issue is fixed in version 1.0.7.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 19:40 UTC
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/rgrove/crass/security/advisori… | x_refsource_CONFIRM |
| https://github.com/rgrove/crass/commit/ea6726b7f7… | x_refsource_MISC |
| https://github.com/rgrove/crass/releases/tag/v1.0.7 | x_refsource_MISC |
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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
EPSS
VEX
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-2026-59991 (GCVE-0-2026-59991)
Vulnerability from cvelistv5 – Published: 2026-09-22 19:11 – Updated: 2026-09-22 19:37
VLAI
EPSS
VEX
Title
psd-tools: Uncontrolled memory allocation in psd-tools composite/numpy via crafted PSD geometry
Summary
psd-tools is a Python package for working with Adobe Photoshop PSD files. Prior to 1.17.4, PSDImage.composite() and PSDImage.numpy() allocated output buffers from attacker-controlled PSD header geometry, including width, height, channels, depth, and per-layer rectangles, before validating those values against the available file data. A tiny crafted PSD could therefore cause multi-gigabyte memory allocation, and PSDImage.composite() could return a black image with only a warning instead of raising an exception. Services that composite untrusted PSD files could be terminated by out-of-memory handling. This issue is fixed in version 1.17.4.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 19:36 UTC
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/psd-tools/psd-tools/security/a… | x_refsource_CONFIRM |
| https://github.com/psd-tools/psd-tools/commit/a3d… | x_refsource_MISC |
| https://github.com/psd-tools/psd-tools/releases/t… | x_refsource_MISC |
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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
EPSS
VEX
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.
Severity
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
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/py-pdf/pypdf/security/advisori… | x_refsource_CONFIRM |
| https://github.com/py-pdf/pypdf/pull/3888 | x_refsource_MISC |
| https://github.com/py-pdf/pypdf/commit/c64583be16… | x_refsource_MISC |
| https://github.com/py-pdf/pypdf/releases/tag/6.14.0 | x_refsource_MISC |
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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
EPSS
VEX
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.
Severity
6.5 (Medium)
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
Assigner
redhat
CNA
References
6 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
4 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 |
|
| 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 |
|
| 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 |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
0.12.1-4.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
Date Public
2026-07-21 11:17
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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
EPSS
VEX
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).
Severity
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
Assigner
bcorg
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/bcgit/bc-java/wiki/CVE%E2%80%9… | vendor-advisory |
| https://github.com/bcgit/bc-java/commit/a43c40dc1… | patch |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Legion of the Bouncy Castle Inc. | BC-JAVA |
Affected:
0 , < 1.85
(maven)
|
|
| Legion of the Bouncy Castle Inc. | BC-LTS-JAVA |
Affected:
2.73.0 , < 2.73.12
(maven)
|
|
| 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) |
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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
EPSS
VEX
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).
Severity
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
Assigner
bcorg
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/bcgit/bc-java/wiki/CVE%E2%80%9… | vendor-advisory |
| https://github.com/bcgit/bc-java/commit/2ea38942c… | patch |
| https://github.com/bcgit/bc-java/commit/2d98721e7… | patch |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Legion of the Bouncy Castle Inc. | BC-JAVA |
Affected:
0 , < 1.85
(maven)
|
|
| Legion of the Bouncy Castle Inc. | BC-LTS-JAVA |
Affected:
2.73.0 , < 2.73.12
(maven)
|
|
| 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) |
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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
EPSS
VEX
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.
Severity
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
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/python-pillow/Pillow/security/… | x_refsource_CONFIRM |
| https://github.com/python-pillow/Pillow/pull/9704 | x_refsource_MISC |
| https://github.com/python-pillow/Pillow/commit/13… | x_refsource_MISC |
| https://github.com/python-pillow/Pillow/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| python-pillow | Pillow |
Affected:
>= 8.2.0, < 12.3.0
|
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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.