CVE-2026-56362
LOW
3.3
CVSS 3.1
Description
ImageMagick before 7.1.2-15 contains a heap-buffer-overflow read vulnerability in GetPixelIndex caused by OpenPixelCache updating image channel metadata before pixel cache memory allocation. Attackers can trigger memory and disk allocation failures to cause a heap-buffer-overflow read affecting any writer calling GetPixelIndex.
Metadata
Severity & Metrics
3.3
LOW CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:L
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| ImageMagick | ImageMagick | — | 0 < 7.1.2-15, 7.1.2-15 |
| ImageMagick | ImageMagick | — | 0 < 6.9.13-40, 6.9.13-40 |
Weakness (CWE)
| CWE | Source | Description |
|---|---|---|
| CWE-125 | cna | Out-of-bounds Read |
CVSS scores (2)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 3.3 | LOW | 3.1 | cna | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:L |
| 2.1 | LOW | 4.0 | cna | CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N |
References (2)
- GitHub Security Advisory (GHSA-gq5v-qf8q-fp77) https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-gq5v-qf8q-fp77
- VulnCheck Advisory: ImageMagick - Heap-buffer-overflow Read in GetPixelIndex via OpenPixelCache Metadata Desynchronization https://www.vulncheck.com/advisories/imagemagick-heap-buffer-overflow-read-in-getpixelindex-via-openpixelcache-metadata-desynchronization