CVE-2026-93909 IBM WebSphere Application Server Liberty is affected by an authentication bypass
Critical 9.1
Published
Updated
Check this codebase for CVE-2026-93909 and fix it if it is affected.
What it is: CVE-2026-93909 is a critical vulnerability in Ibm Websphere Application Server, published on 13 Oct 2026.
Exploitation: There is no known exploitation of CVE-2026-93909 in the wild and no public exploit code.
Affected product: Ibm Websphere Application Server. 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-2026-93909/ (Markdown: https://insights.sbomify.com/CVE-2026-93909/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-93909?
CVE-2026-93909 is a critical vulnerability in Ibm Websphere Application Server, published on 13 Oct 2026.
Official description
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 is vulnerable by an authentication bypass vulnerability when samlWeb-2.0 feature is enabled.
Weakness: CWE-384
Which versions are affected by CVE-2026-93909?
It affects 1 product.
Products include Ibm Websphere Application Server.
How do I fix CVE-2026-93909?
No fix has been published for CVE-2026-93909 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-93909 being exploited?
There is no known exploitation of CVE-2026-93909 in the wild and no public exploit code.
Other vulnerabilities in Ibm Websphere Application Server
Sources
Also known as GHSA-vcr6-887c-vp66.