---
id: CVE-2026-40915
title: 'Gimp: gimp: heap buffer overflow due to integer overflow in fits image loader'
summary: >-
  A flaw was found in GIMP. A remote attacker could exploit an integer overflow
  vulnerability in the FITS image loader by providing a specially crafted FITS
  file. This integer overflow leads to a zero-byte memory allocation, which is
  then …
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-190
vendor: Red Hat
product: gimp
affected:
  - gimp (all versions)
  - gimp (all versions)
  - 'gimp:2.8/gimp (all versions)'
  - gimp (all versions)
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-04-15T19:32:48.306652Z'
published: '2026-04-15'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T21:24:54.827Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-40915'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-40915'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2458744'
    label: RHBZ#2458744
tags:
  - cve.org
epss: 0.00375
epssPercentile: 0.31646
ingestedAt: '2026-11-05T22:38:32.091Z'
---

## Overview

A flaw was found in GIMP. A remote attacker could exploit an integer overflow vulnerability in the FITS image loader by providing a specially crafted FITS file. This integer overflow leads to a zero-byte memory allocation, which is then subjected to a heap buffer overflow when processing pixel data. Successful exploitation could result in a denial of service (DoS) or potentially arbitrary code execution.

## Affected

- `gimp (all versions)`
- `gimp (all versions)`
- `gimp:2.8/gimp (all versions)`
- `gimp (all versions)`

## Remediation

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

### Workarounds

Users should avoid opening untrusted FITS image files with GIMP. If GIMP is not required, consider removing the `gimp` package to eliminate the attack surface. This can be done using the system's package manager, for example: `sudo dnf remove gimp`. Removing GIMP may impact other applications that depend on it.