CVE-2026-86811: Path Traversal

Description

The stateful session bean passivation mechanism derives the on-disk file name from a client-supplied identifier without validating it. A remote attacker with access to the remote EJB service can cause session state to be read from or written to files outside the passivation directory. Users are recommended to upgrade to version 10.3.0 or 11.0.0-M2, which fix the issue.

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Weakness Type (CWE)

CWE-22 Path Traversal

References

Other References

https://lists.apache.org/thread.html/f2x7r654o1nt2z98m39kk0m6x24mz69f

Frequently Asked Questions

What is CVE-2026-86811? +

The stateful session bean passivation mechanism derives the on-disk file name from a client-supplied identifier without validating it. A remote attacker with access to the remote EJB service can cause session state to be read from or written to files outside the passivation directory. Users are recommended to upgrade to version 10.3.0 or 11.0.0-M2, which fix the issue.

How do I check if I'm vulnerable to CVE-2026-86811? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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