CVE-2026-57914 Apache Kerby: StackOverflow on parsing deeply nested ASN1 structures
Medium 6.5
Published
Updated
Check this codebase for CVE-2026-57914 and fix it if it is affected.
What it is: CVE-2026-57914 is a medium-severity vulnerability in Apache Kerby, published on 26 Jun 2026.
Exploitation: There is no known exploitation of CVE-2026-57914 in the wild and no public exploit code.
Affected product: Apache Kerby. 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-2026-57914/ (Markdown: https://insights.sbomify.com/CVE-2026-57914/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-57914?
CVE-2026-57914 is a medium-severity vulnerability in Apache Kerby, published on 26 Jun 2026.
Official description
By sending a deeply nested ASN1 structure to a Apache Kerby client or service, it's possible to trigger a StackOverFlow Exception which can lead to denial of service issues. Users are recommended to upgrade to version 2.1.2, which fixes this issue.
Weakness: CWE-400
Which versions are affected by CVE-2026-57914?
How do I fix CVE-2026-57914?
Upgrade to a fixed version.
Is CVE-2026-57914 being exploited?
There is no known exploitation of CVE-2026-57914 in the wild and no public exploit code.
Sources
Also known as CLEANSTART-2026-BM51393, CLEANSTART-2026-OU08104, GHSA-x6vc-x4v4-hjhr.