# CVE-2026-40918: Gimp: gimp: denial of service via crafted pvr image file

> A crafted PVR image file causes a crash in GIMP via stack-based buffer overflow and out-of-bounds read, leading to denial of service.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 15 Apr 2026
- **Updated:** 20 Apr 2026
- **Also known as:** DEBIAN-CVE-2026-40918, GHSA-qh6q-mfp5-q5wr, UBUNTU-CVE-2026-40918

## What is CVE-2026-40918?

CVE-2026-40918 is a medium-severity memory corruption vulnerability in Gimp Gimp, published on 15 Apr 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

A flaw was found in GIMP. Processing a specially crafted PVR image file with large dimensions can lead to a denial of service (DoS). This occurs due to a stack-based buffer overflow and an out-of-bounds read in the PVR image loader, causing the application to crash. Systems that process untrusted PVR image files are affected.

Weakness: CWE-131 (Incorrect Calculation of Buffer Size)

## Which versions are affected by CVE-2026-40918?

It affects 2 products.


Products: Gimp Gimp, Redhat Enterprise Linux.

## How do I fix CVE-2026-40918?

Apply the vendor's patch.

## Is CVE-2026-40918 being exploited?

There is no known exploitation of CVE-2026-40918 in the wild and no public exploit code.

## Other vulnerabilities in Gimp Gimp

- [CVE-2010-4541](https://insights.sbomify.com/CVE-2010-4541/): Memory corruption in n/a (critical 9.3)
- [CVE-2009-3909](https://insights.sbomify.com/CVE-2009-3909/): Integer overflow in n/a (critical 9.3)
- [CVE-2009-1570](https://insights.sbomify.com/CVE-2009-1570/): Integer overflow in n/a (critical 9.3)
- [CVE-2009-0723](https://insights.sbomify.com/CVE-2009-0723/): Integer overflow in n/a (critical 9.3)
- [CVE-2009-0733](https://insights.sbomify.com/CVE-2009-0733/): Memory corruption in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-40918 and fix it if it is affected.

What it is: CVE-2026-40918 is a medium-severity memory corruption vulnerability in Gimp Gimp, published on 15 Apr 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-40918 in the wild and no public exploit code.

Affected product: Gimp Gimp. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-40918/ (Markdown: https://insights.sbomify.com/CVE-2026-40918/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-40918
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-40918
- OSV: https://osv.dev/vulnerability/CVE-2026-40918

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-40918/
Summaries are generated and may contain mistakes; the official description above is the record.