Home

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.

PUBLISHED Reserved 2026-06-20 | Published 2026-07-08 | Updated 2026-07-08 | Assigner VulnCheck




LOW: 2.1CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
LOW: 3.3CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:L

Problem types

Out-of-bounds Read

Product status

Default status
unaffected

Any version before 7.1.2-15
affected

7.1.2-15 (semver)
unaffected

Default status
unaffected

Any version before 6.9.13-40
affected

6.9.13-40 (semver)
unaffected

Credits

ylwango613 reporter

References

github.com/...Magick/security/advisories/GHSA-gq5v-qf8q-fp77 (GitHub Security Advisory (GHSA-gq5v-qf8q-fp77)) vendor-advisory

www.vulncheck.com/...enpixelcache-metadata-desynchronization (VulnCheck Advisory: ImageMagick - Heap-buffer-overflow Read in GetPixelIndex via OpenPixelCache Metadata Desynchronization) third-party-advisory

cve.org (CVE-2026-56362)

nvd.nist.gov (CVE-2026-56362)

Download JSON