CVE-2026-56361
Public on 2026-06-30
Modified on 2026-09-10
Description
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 v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | ImageMagick | 2026-09-28 | ALAS2-2026-3939 | Fixed |
| Amazon Linux 2023 | ImageMagick | 2026-09-29 | ALAS2023-2026-3115 | Fixed |
| Amazon Linux 2027 Preview | ImageMagick | Not Affected |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 3.3 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L |
| NVD | CVSSv3 | 7.1 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H |