CVE Catalog

CVE-2026-85511

MediumCVSS 4.2
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.28%

19th percentile - higher than 19% of all known CVEs

Summary

A flaw was found in EAP's Elytron. An EAP application whose security domain is backed by an Elytron token-realm with oauth2-introspection would allow parameter substitution due to missing URL encoding.

Risk Assessment

An attacker can manipulate parameters passed to the oauth2-introspection mechanism, potentially leading to authentication bypass or unauthorized access.

Recommendation

Update JBoss EAP / Elytron to a patched version and verify the token-realm configuration with oauth2-introspection.

Related vulnerabilities

Original NVD description (English source)

A flaw was found in EAP's Elytron. An EAP application whose security domain is backed by an Elytron token-realm with oauth2-introspection would allow parameter substitution due to missing URL encoding.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS