CVE-2026-56362
ImageMagick: Heap-based Buffer Overflow in GetPixelIndex due to metadata-cache desynchronization
4.2
MEDIUM
CVSS 3.1
EPSS 0.19%
Description
`OpenPixelCache` updates image channel metadata **before** attempting pixel cache memory allocation. When both memory and disk allocation fail a heap-buffer-overflow read in occurs in any writer that calls `GetPixelIndex`.
How to fix CVE-2026-56362
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- —no fix listed
Is CVE-2026-56362 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.2 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L |