Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/r1ck9-2q/cve_summit/blob/main/Null-pointer-offset-undefined-b
- https://gitlab.freedesktop.org/poppler/poppler/-/commit/5e49250f13b0390edeb3f90e
- 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
FAQ
What is CVE-2026-93312?
CVE-2026-93312 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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...
How severe is CVE-2026-93312?
CVE-2026-93312 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-93312?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.