libheif: Multiple Vulnerabilities — GLSA 202611-04

Multiple vulnerabilities have been found in libheif, the worst of which could result in arbitrary code execution.

Affected packages

media-libs/libheif on all architectures
Affected versions < 1.23.7
Unaffected versions >= 1.23.7

Background

libheif is an ISO/IEC 23008-12 HEIF and AVIF (AV1 Image File Format) file format decoder and encoder. HEIC and AVIF are new image file formats employing HEVC (H.265) or AV1 image coding, respectively, for the best compression ratios currently possible.

Description

Multiple vulnerabilities have been discovered in libheif. Please review the CVE identifiers referenced below for details.

Impact

Please review the referenced CVE identifiers for details.

Workaround

There is no known workaround at this time.

Resolution

All libheif users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=media-libs/libheif-1.23.7"
 

References

Release date
November 11, 2026

Latest revision
November 11, 2026: 1

Severity
high

Exploitable
remote

Bugzilla entries