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CVE-2026-71575

Apache CXF: Inoperative max_age authentication-freshness check in OidcClientCodeRequestFilter

Apache Software Foundation Apache CXF
Open in ThreatlineRecord JSON
CVSS
9.1Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.37%Chance of exploitation activity in the next 30 days, higher than 29% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in4.2.4Also 4.1.9, 3.6.13CVE List
Published9 Oct 2026Updated 15 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 3

  • Apache CXFaffected: 4.2.0 before 4.2.4CVE List
  • Apache CXFaffected: 4.0.0 before 4.1.9CVE List
  • Apache CXFaffected: all versions before 3.6.13CVE List

References 1