CVE-2026-50630: medium-severity vulnerability in Apache CXF
Apache CXF: OAuth2: HTTP Response Splitting via WWW-Authenticate Realm Injection
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected products
Apache Software Foundation · Apache CXFRelated CVEs — Apache CXF
In the same product, most dangerous first.
CVE-2020-13954—Apache CXF Reflected XSS in the services listing page via the styleSheetPathEPSS 40.9%CVE-2017-5653—CVE-2017-5653EPSS 11.2%CVE-2018-8039—CVE-2018-8039EPSS 8.5%CVE-2016-6812—CVE-2016-6812EPSS 7.5%CVE-2016-8739—CVE-2016-8739EPSS 7.3%CVE-2021-30468—Apache CXF Denial of service vulnerability in parsing JSON via JsonMapObjectReaderWriterEPSS 7.0%