---
id: CVE-2026-110734
title: >-
  Godot Engine through 4.7.2 has a heap out-of-bounds write in the Radiance HDR
  (.hdr) image decoder (modules/hdr/image_loader_hdr.cpp)
summary: >-
  Godot Engine through 4.7.2 has a heap out-of-bounds write in the Radiance HDR
  (.hdr) image decoder (modules/hdr/image_loader_hdr.cpp). The run-length
  decoding loop expands RLE instructions read from the file into a buffer sized
  from the …
severity: low
cvss: 2.5
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N'
cwe:
  - CWE-787
vendor: godotengine
product: Godot Engine
affected:
  - godot_engine >= 3.0.0 <= 4.7.2
published: '2026-10-14'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T17:17:15.320'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110734'
references:
  - url: >-
      https://axeghost.offprint.app/a/3mvs6zo4blo23-three-memory-safety-bugs-in-godots-untrusted-file-parsers
    label: cve@mitre.org
  - url: 'https://github.com/godotengine/godot/issues/123608'
    label: cve@mitre.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/10/15/4'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-14T17:42:31.644549Z'
ingestedAt: '2026-10-14T16:40:32.123Z'
epss: 0.00156
epssPercentile: 0.04734
---

## Overview

Godot Engine through 4.7.2 has a heap out-of-bounds write in the Radiance HDR (.hdr) image decoder (modules/hdr/image_loader_hdr.cpp). The run-length decoding loop expands RLE instructions read from the file into a buffer sized from the image dimensions, without validating that an instruction's repeat/copy count fits the remaining capacity of the row buffer. A crafted .hdr file therefore writes attacker-supplied bytes past the end of the heap allocation, with the overflow length and content controlled by the file. The defect is reached automatically when the product imports a crafted .hdr (e.g., when opening a project containing one), and at runtime in exported projects that load untrusted .hdr images. NOTE: the Supplier's position is that the research has identified "no security issues" because the required attacker access is outside of the current Godot Engine threat model.

## Remediation

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