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Vulnerability · Published Sep 18, 2026 · Assigned by VulDB

CVE-2026-93312Freedesktop Poppler JBIG2Stream.cc rewind null pointer dereference

Medium 4.3

In plain English

A medium-severity null pointer dereference in Poppler from Freedesktop. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.4%top 65.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12popplerno fix listedDEBIAN-CVE-2026-93312
Debian:13popplerno fix listedDEBIAN-CVE-2026-93312
Debian:14poppler26.07.0-3DEBIAN-CVE-2026-93312
Ubuntu:22.04:LTSpoppler22.02.0-2ubuntu0.14UBUNTU-CVE-2026-93312
Ubuntu:22.04:LTSpoppler22.02.0-2ubuntu0.14USN-8894-1
Ubuntu:24.04:LTSpoppler24.02.0-1ubuntu9.10USN-8894-1
Ubuntu:24.04:LTSpoppler24.02.0-1ubuntu9.10UBUNTU-CVE-2026-93312
Ubuntu:26.04:LTSpoppler26.01.0-2ubuntu0.2USN-8894-1
Ubuntu:26.04:LTSpoppler26.01.0-2ubuntu0.2UBUNTU-CVE-2026-93312

Affected products (as reported)

VendorProductVersions
Freedesktop Poppler 26.07.0

Weakness: CWE-476, CWE-404 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

References