rootpwn

high · CVSS v3 6.3 · CVSS v4 5.3

CVE-2026-93314

Poppler 26.07.0 contains a remote integer overflow in FoFiTrueType::mapCodeToGID triggered by a crafted segCnt value, potentially leading to

Overview

Poppler 26.07.0 contains a remote integer overflow in FoFiTrueType::mapCodeToGID triggered by a crafted segCnt value, potentially leading to memory corruption or crashes. The flaw can be exploited over the network without local access. It is publicly disclosed and may be used by attackers.

Description

A vulnerability was determined in Freedesktop Poppler 26.07.0. This affects the function FoFiTrueType::mapCodeToGID of the file fofi/FoFiTrueType.cc. Executing a manipulation of the argument segCnt can lead to integer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. This patch is called ed2a5538cf0a8d3ff908191eda9b73f91a5f952a. It is advisable to implement a patch to correct this issue.

Impact

Confidentiality: possible memory disclosure; Integrity: potential code execution; Availability: application crash. Defenders include system administrators, developers of PDF rendering libraries, and security teams monitoring PDF processing.

Remediation

Apply the official patch (ed2a5538cf0a8d3ff908191eda9b73f91a5f952a) or upgrade to a newer Poppler release that includes the fix. Verify binary integrity and monitor for abnormal PDF rendering activity.

Risk context

High severity (CVSS 6.3). No EPSS data available. Immediate patching is recommended to mitigate potential exploitation.

Affected products

  • Freedesktop Poppler 26.07.0
  • Poppler 26.07.0
  • Linux PDF viewers using Poppler

Scores

Severity
high
CVSS v2
7.5
CVSS v3
6.3
CVSS v4
5.3
EPSS
—

integer-overflow remote-exploit Poppler PDF memory-corruption high-severity

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