# CVE-2026-94287: Denial of service via unsigned underflow in libXpm's write path

> Local attackers can cause denial of service via unbounded CPU and memory usage due to an unsigned underflow in libXpm's write path.

- **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:** 28 Sep 2026
- **Updated:** 28 Sep 2026
- **Also known as:** ALPINE-CVE-2026-94287, BELL-CVE-2026-94287, DEBIAN-CVE-2026-94287, ECHO-35bc-714c-9ad7, GHSA-ggh5-2m6x-59xg, MGASA-2026-0527, OESA-2026-4292, OESA-2026-4293, OESA-2026-4294, OESA-2026-4295, SUSE-SU-2026:24204-1, SUSE-SU-2026:4761-1, SUSE-SU-2026:4763-1, UBUNTU-CVE-2026-94287, USN-8862-1, openSUSE-SU-2026:11896-1, openSUSE-SU-2026:22056-1

## What is CVE-2026-94287?

CVE-2026-94287 is a medium-severity vulnerability in x.org libXpm, published on 28 Sep 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 denial of service via unsigned underflow in libXpm's write path in libXpm before 3.5.19 could be used by local attackers to cause unbounded CPU usage and memory exhaustion.

Weakness: CWE-1050 (Excessive Platform Resource Consumption within a Loop)

## Which versions are affected by CVE-2026-94287?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `libXpm` | SUSE:Linux Enterprise Module for Basesystem 15 SP7 | All versions | 3.5.12-150000.3.13.1 |
| `libXpm` | SUSE:Linux Enterprise Module for Package Hub 15 SP7 | All versions | 3.5.12-150000.3.13.1 |
| `libXpm` | SUSE:Linux Enterprise Server 16.0 | All versions | 3.5.17-160000.4.1 |
| `libXpm` | SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 | All versions | 3.5.11-6.13.1 |
| `libXpm` | SUSE:Linux Enterprise Server for SAP applications 16.0 | All versions | 3.5.17-160000.4.1 |
| `libXpm` | SUSE:Linux Enterprise Workstation Extension 15 SP7 | All versions | 3.5.12-150000.3.13.1 |
| `libXpm` | openSUSE:Leap 16.0 | All versions | 3.5.17-160000.4.1 |
| `libXpm` | openSUSE:Tumbleweed | All versions | 3.5.18-3.1 |

## How do I fix CVE-2026-94287?

Upgrade to a fixed version.

## Is CVE-2026-94287 being exploited?

There is no known exploitation of CVE-2026-94287 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-94287 and fix it if it is affected.

What it is: CVE-2026-94287 is a medium-severity vulnerability in x.org libXpm, published on 28 Sep 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-2026-94287 in the wild and no public exploit code.

Affected product: x.org libXpm. 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-2026-94287/ (Markdown: https://insights.sbomify.com/CVE-2026-94287/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-94287
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-94287
- OSV: https://osv.dev/vulnerability/CVE-2026-94287

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-94287/
Summaries are generated and may contain mistakes; the official description above is the record.