Bug 2459992 (CVE-2026-6861) - CVE-2026-6861 emacs: Emacs: Memory corruption vulnerability when processing SVG CSS
Summary: CVE-2026-6861 emacs: Emacs: Memory corruption vulnerability when processing S...
Keywords:
Status: NEW
Alias: CVE-2026-6861
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
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Depends On: 2460584 2460585 2460586
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-21 07:35 UTC by OSIDB Bzimport
Modified: 2026-04-22 13:22 UTC (History)
0 users

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Description OSIDB Bzimport 2026-04-21 07:35:33 UTC 
Off-by-one heap buffer overflow and uninitialized heap read in GNU Emacs src/image.c svg_load_image() when processing SVG CSS. The null terminator is written one byte past the allocation. Affected: Emacs 28.1 through 30.2. Fixed upstream on emacs-30: commit 8f535370b9.

Public bug: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=80851
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