CVE-2026-93313: Freedesktop Poppler JBIG2Stream.cc readCodeTableSeg integer overflow

Published Sep 18, 2026

Updated

A vulnerability was found in Freedesktop Poppler 26.07.0. The impacted element is the function JBIG2Stream::readCodeTableSeg of the file poppler/JBIG2Stream.cc. Performing a manipulation results in integer overflow. The attack can be initiated remotely. The exploit has been made public and could be used. The patch is named eb87cf711563894649bd0c365baa479401dc6d51. To fix this issue, it is recommended to deploy a patch.

Affected Software

1 affected component

Freedesktop poppler=26.07.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade Freedesktop Poppler to a version that resolves this vulnerability.
Patch eb87cf711563894649bd0c365baa479401dc6d51

Event History

Sep 18, 2026

CVE Published

via MITRE·01:15 AM

Data Sourced

via MITRE·01:15 AM

DescriptionSeverityWeakness

Frequently Asked Questions

What does an attacker need to exploit this issue?

The issue can be initiated remotely and requires user interaction. No attacker privileges are required, and exploitation involves manipulating input processed by JBIG2Stream::readCodeTableSeg.

Is public exploit information available?

Yes. The exploit has been made public and could be used.

What should organizations do to remediate the issue?

Deploy the patch identified as eb87cf711563894649bd0c365baa479401dc6d51. The provided data does not describe an alternative mitigation if patching cannot be performed immediately.