What is CVE-2026-93312?

CVE-2026-93312 is a medium-severity vulnerability in Freedesktop Poppler, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-09-18.

How severe is CVE-2026-93312?

Medium severity. CVSS v3 base score is 4.3 out of 10.

NULL pointer dereference in Freedesktop Poppler

CVE-2026-93312

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 v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.

Affected products

Freedesktop Poppler — versions 26.07.0

Weakness classification (CWE)

References

cna@vuldb.com (exploit)
cna@vuldb.com (patch, broken-link)
cna@vuldb.com (patch)
cna@vuldb.com (related)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)

Frequently asked questions

What is CVE-2026-93312?: CVE-2026-93312 is a medium-severity vulnerability in Freedesktop Poppler, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-09-18.
How severe is CVE-2026-93312?: Medium severity. CVSS v3 base score is 4.3 out of 10.