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CVE

CVE-2026-23876

Heap buffer overflow with attacker-controlled data in XBM parser
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CVE

CVE-2026-23876

Heap buffer overflow with attacker-controlled data in XBM parser

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-13 and 6.9.13-38, a heap buffer overflow vulnerability in the XBM image decoder (ReadXBMImage) allows an attacker to write controlled data past the allocated heap buffer when processing a maliciously crafted image file. Any operation that reads or identifies an image can trigger the overflow, making it exploitable via common image upload and processing pipelines. Versions 7.1.2-13 and 6.9.13-38 fix the issue.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.1
-
3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23876.json, https://github.com/ImageMagick/ImageMagick/commit/2fae24192b78fdfdd27d766fd21d90aeac6ea8b8, https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-r49w-jqq3-3gx8, https://nvd.nist.gov/vuln/detail/CVE-2026-23876

Severity

8.1

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
8.1
EPSS Probability
0.00084%
EPSS Percentile
0.24419%
Introduced Version
0,7.0.0-0
Fix Available
dd991e286b96918917a3392d6dc3ffc0e6907a4e,8:6.9.11.60+dfsg-1.6+deb12u6,8:6.9.11.60+dfsg-1.3+deb11u9,8:7.1.1.43+dfsg1-1+deb13u5,8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm6,8:6.9.7.4+dfsg-16ubuntu6.15+esm9,8:6.9.10.23+dfsg-2.1ubuntu11.11+esm7,8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm7,6.9.13-38,7.1.2-13,0:6.9.10.97-1.amzn2.0.20,1:6.9.13.29-1.amzn2023.0.5

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