CVE-2026-50630CWE-113

CVE-2026-50630

Medium · published June 12, 2026

CVSS v3.1
6.5
EPSS
1%
Percentile
49.9
In the wild
Unconfirmed
What it is

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 or 3.6.12, which fixes this issue.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00637 · 49.9th percentile
Weakness
CWE-113 · Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
Published
2026-06-12T14:16Z
Affected products (2)
ProductVersionsFixed in
apache/cxf< 4.1.74.1.7
apache/cxf≥ 4.2.0, < 4.2.24.2.2
References (2)
https://lists.apache.org/thread/bt7vnjzzkpd6vdhkxv103poor1jy5trm · [email protected]http://www.openwall.com/lists/oss-security/2026/06/11/7 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 12 JUN 08:58Z
    Apache CXF: OAuth2: HTTP Response Splitting via WWW-Authenticate Realm Injection
    cvelistv5