# CVE-2026-92183: GIMP stack-based buffer overflow in APNG file parsing

Source: https://junglewise.ai/threats/cve-2026-92183-gimp-apng-file-parsing-stack-based-buffer-overflow-remote-code  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-21. Updated: 2026-10-21  
License: CC BY 4.0 with a link back

CVE-2026-92183 · Severity: high · CVSS 7.8 · Published 2026-10-21

GIMP is a widely used open-source image editor that handles various image file formats including APNG (Animated PNG). A stack-based buffer overflow in GIMP's APNG parser allows attackers to execute arbitrary code when a user opens a malicious image file. This could lead to complete system compromise through remote code execution.

Technologies: [Gnome GIMP](https://junglewise.ai/threats/technologies/gnome-gimp). Vendors: [Gnome](https://junglewise.ai/threats/vendors/gnome).

## Quick answers

**Is CVE-2026-92183 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-92183 being exploited in the wild.

**How severe is CVE-2026-92183?** High severity, with a CVSS score of 7.8, published 21 October 2026.

**Which products and versions are affected?** GNOME GIMP.

**Is there a fix for CVE-2026-92183?** A patch was published on 2026-09-16: GIMP issued an update; fix available at https://gitlab.gnome.org/GNOME/gimp/-/commit/175e28961a4679be8762a2d4d5a297faa82aebd9 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-92183 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-92183?** Check whether you run Gnome GIMP. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability exists in GIMP's APNG file parsing code due to insufficient validation of user-supplied data length before copying to a stack buffer. The attack requires user interaction (opening a malicious APNG file) and runs in the context of the GIMP process. An attacker can craft a malicious APNG file to trigger the overflow and achieve arbitrary code execution.

## Affected products

- GNOME GIMP

## Timeline

- 2026-04-29: disclosed: Vulnerability reported to vendor
- 2026-09-16: advisory: Coordinated public release of advisory
- 2026-09-16: patched: GIMP issued an update; fix available at https://gitlab.gnome.org/GNOME/gimp/-/commit/175e28961a4679be8762a2d4d5a297faa82aebd9

## References

- [https://gitlab.gnome.org/GNOME/gimp/-/commit/175e28961a4679be8762a2d4d5a297faa82aebd9](https://gitlab.gnome.org/GNOME/gimp/-/commit/175e28961a4679be8762a2d4d5a297faa82aebd9)
- [https://www.zerodayinitiative.com/advisories/ZDI-26-713/](https://www.zerodayinitiative.com/advisories/ZDI-26-713/)

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