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JLSEC-2026-494 Critical 9.8

WPG in GraphicsMagick before 1.3.46 mishandles palette buffer allocation.

SourceEditHistoryOSVJSON (OSV)
JLSEC Published
Modified
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Packages
GraphicsMagick_jll < 1.3.47+0
Upstream
CVE-2025-27796 GHSA-v5xf-gj23-85jx EUVD-2025-6239

ReadWPGImage in WPG in GraphicsMagick before 1.3.46 mishandles palette buffer allocation, resulting in out-of-bounds access to heap memory in ReadBlob.

References