PT-2026-48849 · Apache · Apache Cxf

Published 2026-06-12 · Updated 2026-06-12 · CVE-2026-50630

Mitre

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

A CRLF injection vulnerability exists in the OAuth2 AuthorizationUtils class. When constructing the WWW-Authenticate response header, the 'realm' parameter is concatenated without sanitizing Carriage Return (CR) and Line Feed (LF) characters. If an attacker can control the realm value, they can inject arbitrary HTTP headers or split the HTTP response entirely. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.

Fix

Weakness Enumeration

CWE-113

Related Identifiers

CVE-2026-50630

Affected Products

Apache Cxf

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-50630 · Security Note
• https://lists.apache.org/thread/bt7vnjzzkpd6vdhkxv103poor1jy5trm · Vendor Advisory
• http://openwall.com/lists/oss-security/2026/06/11/7 · Note