CVE-2026-34085

Name
CVE-2026-34085
Description
fontconfig before 2.17.1 has an off-by-one error in allocation during sfnt capability handling, leading to a one-byte out-of-bounds write, and potentially a crash or code execution. This is in FcFontCapabilities in fcfreetype.c.
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
cve@mitre.org https://gitlab.freedesktop.org/fontconfig/fontconfig/-/commit/b9bec06d73340f1b5727302d13ac3df307b7febc
cve@mitre.org https://gitlab.freedesktop.org/fontconfig/fontconfig/-/merge_requests/446
cve@mitre.org https://gitlab.freedesktop.org/fontconfig/fontconfig/-/work_items/481

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:fontconfig_project:fontconfig:*:*:*:*:*:*:*:* fontconfig >= None < 2.17.1

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
fontconfig edge-main 2.15.0-r5 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
fontconfig edge-main 2.15.0-r4 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
fontconfig edge-main 2.15.0-r3 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
fontconfig edge-main 2.15.0-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
fontconfig edge-main 2.15.0-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
fontconfig 3.22-main 2.15.0-r3 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
fontconfig 3.21-main 2.15.0-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
fontconfig 3.20-main 2.15.0-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
fontconfig 3.19-main 2.14.2-r4 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable