What’s Vulnerable › Vulnerabilities

CVE-2026-71575: Apache CXF: Inoperative max_age authentication-freshness check in OidcClientCodeRequestFilter

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-09 · updated 2026-10-16
• Weakness: CWE-613

Description

The max_age authentication-freshness check in OidcClientCodeRequestFilter was inoperative due to a milliseconds/seconds unit mismatch and an inverted comparison polarity. Any relying party using setMaxAgeOffset to enforce re-authentication would silently accept sessions of any age, bypassing step-up authentication policies. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.

Affected products

• Apache Software Foundation Apache CXF: before 3.6.13; from 4.0.0 before 4.1.9; from 4.2.0 before 4.2.4 — fixed in 3.6.13, 4.1.9, 4.2.4

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache CXF 3.6.13, 4.1.9, 4.2.4. Check the vendor advisory for mitigations.

References

• https://lists.apache.org/thread/p1r9t4xl8ny7rg8wmj8nrygx35ds6vcs
• http://www.openwall.com/lists/oss-security/2026/10/09/4

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