Dashboard / CVE-2026-57817

CVE-2026-57817

HIGH
MEDIUM Priority: 0.06 BB Relevance: 66/100
Published: 2026-08-06 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

The OpenID Connect Core 1.0 specification mandates that the RP MUST validate the `c_hash` parameter when operating in the Hybrid Flow. If an Apache CXF RP is integrated with a non-compliant or misconfigured Identity Provider (IdP) that omits the `c_hash`, the RP becomes vulnerable to Authorization Code Substitution/Injection attacks. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
apache cxf < 3.6.12

References & Advisories (2)

Bug Bounty Relevance

66 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

8.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.69%
Raw Score 0.006920
Percentile 52.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00692
2026-10-28
0.00692

Intelligence Sources

nvd ref →

External Links