No exploitation reportedFix available

CVE-2026-71575

Q: Is CVE-2026-71575 actively exploited?

Active exploitation of CVE-2026-71575 has not been confirmed. Its EPSS score was 0.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2026-71575?

CVE-2026-71575 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Apache CXF: Inoperative max_age authentication-freshness check in OidcClientCodeRequestFilter

No exploitation reported by the sources we read.

Published2026-10-09
Fixed in4.2.4 · 4.1.9 · 3.6.13
WeaknessCWE-613

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2026-10-0911:17CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-71575?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-71575?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Apache cxf

Branch	Affected	Fixed in	Source
4.2	≥ 4.2.0, < 4.2.4	4.2.4	NVD
4.x	≥ 4.0.0, < 4.1.9	4.1.9	NVD
3.6	< 3.6.13	3.6.13	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Apache cxf to 4.2.4 · 4.1.9 · 3.6.13

Advisories and patches

lists.apache.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionnone2026-10-15
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.19.12026-10-15
CNAweakness (CWE)CWE-613read 2026-10-23
FIRST EPSSEPSS score0.4 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Published: 2026-10-09
Last Modified: 2026-10-16
NVD status: Analyzed

Frequently asked questions

What is CVE-2026-71575?

Is CVE-2026-71575 actively exploited?

Active exploitation of CVE-2026-71575 has not been confirmed. Its EPSS score was 0.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-71575?

CVE-2026-71575 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

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