CVE-2026-65583

CRITICAL
INFO Priority: 0.03 BB Relevance: 78/100
Published: 2026-08-06 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: None

Description

Apache CXF’s OIDC relying-party token validation could accept self-issued ID tokens without enforcing required claim checks (issuer/subject/audience/time and sub_jwk binding), enabling authentication bypass with crafted tokens. However, note that self-issued ID tokens are not accepted by default in the validator. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fixes this issue.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
apache cxf < 3.6.12
apache cxf 4.0.0 – 4.1.8
apache cxf 4.2.0 – 4.2.3

Bug Bounty Relevance

78 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploitation Probability

0.28%
Raw Score 0.002790
Percentile 20.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00279
2026-10-28
0.00279

Intelligence Sources

nvd ref →