CVE-2026-93312

Impact

A flaw has been found in Freedesktop Poppler 26.07.0. Impacted is the function JBIG2Stream::rewind of the file poppler/JBIG2Stream.cc. This manipulation causes null pointer dereference. It is possible to initiate the attack remotely. The exploit has been published and may be used. Upgrading to version 26.08.0 is recommended to address this issue. Patch name: 5e49250f13b0390edeb3f90eb4c02c9941f97067. Upgrading the affected component is advised.

Affected packages

This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.

Weakness classification

References

• NVD record
• CVE.org record
• https://github.com/r1ck9-2q/cve_summit/blob/main/Null-pointer-offset-undefined-behavior-in-JBIG2Stream-rewind-JBIG2Stream.cc-1229.md
• https://gitlab.freedesktop.org/poppler/poppler/-/commit/5e49250f13b0390edeb3f90eb4c02c9941f97067
• https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/2314
• https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1759
• https://vuldb.com/cve/CVE-2026-93312
• https://vuldb.com/submit/942345
• https://vuldb.com/vuln/406610
• https://vuldb.com/vuln/406610/cti
• https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1759
• https://vuldb.com/submit/942345