CVE-2026-56361
highImageMagick before 7.1.2-19 contains an off-by-one error in morphology validation allowing out-of-bounds heap buffer reads.
Vendor / product: Imagemagick — imagemagick
ImageMagick before 7.1.2-19 contains an off-by-one error in morphology validation allowing out-of-bounds heap buffer reads. Attackers can trigger heap buffer overflow by providing incorrect morphology parameters causing single pixel memory access violations.
CVSS
7.1
7.1 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-06-30 23:17
Modified: 2026-10-29 21:17
NVD status: Analyzed
Last synced 9 hours ago
Verified against the source API 2026-10-29 21:28 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
imagemagick / imagemagick <6.9.13-44, ≥7.0.0-0 <7.1.2-19
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-q8h3-jv9v-57qx disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/imagemagick-heap-buffer-overflow-via-off-by-one-in-mo... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-29 21:28 UTC · record ↗