CVE-2026-44073 seteuid failure ignored in auth modules
Medium 4.0
Published
Updated
Check this codebase for CVE-2026-44073 and fix it if it is affected.
What it is: CVE-2026-44073 is a medium-severity vulnerability in Netatalk, published on 21 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-44073 in the wild and no public exploit code.
Affected product: Netatalk. 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-2026-44073/ (Markdown: https://insights.sbomify.com/CVE-2026-44073/index.md)
Remote authenticated attackers can retain elevated privileges due to unchecked seteuid return values in Netatalk authentication modules.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44073?
CVE-2026-44073 is a medium-severity vulnerability in Netatalk, published on 21 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Authentication modules in Netatalk 1.5.0 through 4.4.2 fail to check the return value of seteuid(), which may allow a remote authenticated attacker to retain elevated privileges under error conditions.
Weakness: CWE-273
Which versions are affected by CVE-2026-44073?
How do I fix CVE-2026-44073?
Upgrade to a fixed version.
Is CVE-2026-44073 being exploited?
There is no known exploitation of CVE-2026-44073 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-44073, GHSA-pc7p-8fgv-4x9c, UBUNTU-CVE-2026-44073.