---
id: CVE-2026-110133
title: >-
  Ghostscript: heap buffer overflow in ghostscript truetype outliner due to
  npointstotal integer underflow during retry rollback
summary: >-
  A flaw was found in Ghostscript. When processing a specially crafted TrueType
  font or document embedding one, an accounting error during font rendering can
  bypass buffer size checks, triggering a heap-based buffer overflow. A remote
  atta…
severity: medium
cvss: 5.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-122
vendor: Red Hat
product: ghostscript
affected:
  - ghostscript (all versions)
  - ghostscript
  - ghostscript (all versions)
  - ghostscript (all versions)
  - ghostscript (all versions)
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-30T17:00:20.316296Z'
published: '2026-10-30'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T16:20:55.411Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-110133'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-110133'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2461973'
    label: RHBZ#2461973
tags:
  - cve.org
epss: 0.00235
epssPercentile: 0.14509
ingestedAt: '2026-11-05T16:24:31.112Z'
---

## Overview

A flaw was found in Ghostscript. When processing a specially crafted TrueType font or document embedding one, an accounting error during font rendering can bypass buffer size checks, triggering a heap-based buffer overflow. A remote attacker could exploit this by enticing a victim or automated service to open the malicious content, potentially resulting in a Denial of Service (DoS) crash or arbitrary code execution.

## Affected

- `ghostscript (all versions)`
- `ghostscript`
- `ghostscript (all versions)`
- `ghostscript (all versions)`
- `ghostscript (all versions)`

## Remediation

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

### Workarounds

To mitigate this issue, avoid processing untrusted documents or standalone TrueType fonts with Ghostscript. If feasible, disable TrueType instruction execution within Ghostscript configurations. Consult Ghostscript documentation for specific configuration options to disable TrueType instruction execution. Running Ghostscript in a restrictive sandbox environment can also reduce the blast radius of potential exploitation.