CVE-2017-5656: Apache Cxf

High severity, CVSS 7.5. EPSS: 6.8% chance of exploitation in the next 30 days.

Apache CXF's STSClient before 3.1.11 and 3.0.13 uses a flawed way of caching tokens that are associated with delegation tokens, which means that an attacker could craft a token which would return an identifer corresponding to a cached token for another user.

Affected products

• Apache Cxf: from 3.0.0, before 3.0.13 (fixed in 3.0.13); from 3.1.0, before 3.1.11 (fixed in 3.1.11)

Published 2017-04-18. Last modified 2026-06-17.