CVE-2026-32740

Name
CVE-2026-32740
Description
libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and prior contain a heap-buffer-overflow (write) vulnerability in the grid tile compositing, allowing an attacker to write 64 bytes of fully attacker-controlled data past the end of a chroma plane heap allocation by crafting a HEIF/AVIF file with a 1×4 grid of odd-height tiles. The overflow is triggered during normal image decoding with default build configuration. The written bytes are chroma (Cb/Cr) pixel values from the attacking tile, giving the attacker full control over the overflow content. This issue has been fixed in version 1.22.0.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
security-advisories@github.com https://github.com/strukturag/libheif/releases/tag/v1.22.0
security-advisories@github.com https://github.com/strukturag/libheif/security/advisories/GHSA-frfr-f3vg-2g6j

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:struktur:libheif:*:*:*:*:*:*:*:* libheif >= None < 1.22.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
libheif edge-main 1.21.2-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif edge-main 1.20.2-r2 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif edge-main 1.20.2-r1 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif edge-main 1.17.6-r0 None possibly vulnerable
libheif edge-main 1.5.0-r0 None possibly vulnerable
libheif edge-community 1.21.2-r3 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif edge-community 1.21.2-r2 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif edge-community 1.21.2-r1 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif edge-community 1.21.2-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif edge-community 1.20.2-r1 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif edge-community 1.20.2-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif edge-community 1.20.1-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif edge-community 1.19.8-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif edge-community 1.19.7-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif edge-community 1.19.5-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif edge-community 1.17.6-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif edge-community 1.5.0-r0 None possibly vulnerable
libheif 3.23-main 1.23.0-r0 Jakub Jirutka <jakub@jirutka.cz> fixed
libheif 3.23-main 1.21.2-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
libheif 3.23-main 1.20.2-r1 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable