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.
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Affected Vendors & Products
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History
Fri, 12 Jun 2026 19:15:00 +0000
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| CPEs | cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:* |
Fri, 12 Jun 2026 14:30:00 +0000
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cvssV3_1
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Fri, 12 Jun 2026 11:15:00 +0000
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Apache
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| Vendors & Products |
Apache
Apache cxf |
Fri, 12 Jun 2026 10:30:00 +0000
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| Description | 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. | |
| Title | Apache CXF: OAuth2: HTTP Response Splitting via WWW-Authenticate Realm Injection | |
| Weaknesses | CWE-113 | |
| References |
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Status: PUBLISHED
Assigner: apache
Published: 2026-06-12T08:58:27.181Z
Updated: 2026-06-12T14:03:22.085Z
Reserved: 2026-06-05T10:57:56.617Z
Link: CVE-2026-50630
Updated: 2026-06-12T09:28:07.644Z
Status : Analyzed
Published: 2026-06-12T10:16:22.950
Modified: 2026-06-12T19:04:00.513
Link: CVE-2026-50630
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