CVE-2026-50629

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 71/100
Published: 2026-06-12 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

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

Description

The 'clientId' parameter from incoming HTTP requests is directly concatenated into OAuth2 server log warning messages without sanitizing control characters. This allows an attacker to inject arbitrary content, including fake log entries, into the server's log files. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
apache cxf < 4.1.7
apache cxf 4.2.0 – 4.2.2

References & Advisories (2)

Bug Bounty Relevance

71 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

5.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS — Exploitation Probability

0.44%
Raw Score 0.004370
Percentile 37.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00437
2026-10-28
0.00437

Intelligence Sources

nvd ref →