---
id: CVE-2026-93311
title: A vulnerability was detected in Freedesktop Poppler 26.07.0
summary: >-
  A vulnerability was detected in Freedesktop Poppler 26.07.0. This issue
  affects the function SampledFunction::SampledFunction of the file
  poppler/Function.cc of the component SampledFunction. The manipulation of the
  argument BitsPerSampl…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'
cwe:
  - CWE-189
  - CWE-190
vendor: Freedesktop
product: Poppler
affected:
  - Poppler 26.07.0
published: '2026-09-18'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T16:18:13.033'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93311'
references:
  - url: >-
      https://github.com/r1ck9-2q/cve_summit/blob/main/Shift-exponent-undefined-behavior-in-SampledFunction-Function.cc-376.md
    label: cna@vuldb.com
  - url: 'https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1758'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-93311'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/942344'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/406609'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/406609/cti'
    label: cna@vuldb.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93311.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-93311'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2538609'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-93311'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93311'
  - url: 'https://access.redhat.com/errata/RHSA-2026:82452'
tags:
  - nvd
  - cve.org
  - exploit-available
  - csaf
  - vex
  - red-hat
  - score-dispute
epss: 0.00562
epssPercentile: 0.4654
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-22T15:34:05.644312Z'
ingestedAt: '2026-09-18T01:33:24.268Z'
patched:
  - hardened_images
scores:
  nvd: 4.3
  vendor: 6.5
---

## Overview

A vulnerability was detected in Freedesktop Poppler 26.07.0. This issue affects the function SampledFunction::SampledFunction of the file poppler/Function.cc of the component SampledFunction. The manipulation of the argument BitsPerSample results in integer overflow. The attack may be performed from remote. The exploit is now public and may be used. The project was informed of the problem early through a bug report but has not responded yet.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **RHSA-2026:82452** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-10-13 · [advisory](https://access.redhat.com/errata/RHSA-2026:82452)