CVE-2026-103226

NameCVE-2026-103226
DescriptionA vulnerability was identified in Artifex Ghostscript up to 10.07.0. Affected is the function type1_callsubr of the file devices/vector/gdevpsfx.c of the component Pdfwrite. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. Upgrading to version 10.08.0 is able to address this issue. It is suggested to upgrade the affected component. A solution was implemented: "I've chosen to fix this slightly differently by using the defined macro in the font parsing loop rather than in the callsubr function, because this better matches the pattern of 'normal' usage."
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-6550-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ghostscript (PTS)bookworm, bookworm (security)10.0.0~dfsg-11+deb12u8vulnerable
trixie10.05.1~dfsg-1+deb13u1vulnerable
trixie (security)10.05.1~dfsg-1+deb13u3fixed
forky, sid10.08.0~dfsg-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ghostscriptsourcetrixie10.05.1~dfsg-1+deb13u3DSA-6550-1
ghostscriptsource(unstable)10.08.0~dfsg-1

Notes

https://bugs.ghostscript.com/show_bug.cgi?id=709672
Fixed by: https://cgit.ghostscript.com/cgi-bin/cgit.cgi/ghostpdl.git/commit/?id=cbdc86cc7a95c792baae3a15c7acf59b95fbcd5c (ghostpdl-10.08.0)

Search for package or bug name: Reporting problems