Vulnerability details
CVE-2026-23876
ImageMagick ImageMagick
Heap buffer overflow with attacker-controlled data in XBM parser
CVSS 3.1
8.1High
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.1High | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 8.1High | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| ImageMagick | ImageMagick | < 6.9.13-38 | CVEProject cvelistV5 (CNA) |
| ImageMagick | ImageMagick | < 7.1.2-13 | CVEProject cvelistV5 (CNA) |
References and advisories
6- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-r49w-jqq3-3gx8 x_refsource_CONFIRM
- https://github.com/ImageMagick/ImageMagick/commit/2fae24192b78fdfdd27d766fd21d90aeac6ea8b8 x_refsource_MISC
- https://access.redhat.com/security/cve/CVE-2026-23876 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2431038 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23876.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:3058 vendor-advisoryx_refsource_REDHAT
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Details
- Published
- 2026-01-20
- Last updated
- 2026-07-15
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.67%
Probability of exploitation in 30 days
52.4%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-122Heap-based Buffer Overflow
- CWE-190Integer Overflow or Wraparound
- CWE-787Out-of-bounds Write