What is CVE-2026-50630?

CVE-2026-50630 is a medium-severity vulnerability in Apache Cxf, classified under HTTP Response Splitting. CVSS score: 6.5/10. Published 2026-06-12.

How severe is CVE-2026-50630?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Apache Cxf

CVE-2026-50630

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) characte…

EPSS: 0.004 (33.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Apache Cxf
Apache Software Foundation Cxf — versions 4.2.0, 0

Weakness classification (CWE)

CWE-113 — HTTP Response Splitting

References

security@apache.org (vendor-advisory, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-50630?: CVE-2026-50630 is a medium-severity vulnerability in Apache Cxf, classified under HTTP Response Splitting. CVSS score: 6.5/10. Published 2026-06-12.
How severe is CVE-2026-50630?: Medium severity. CVSS v3 base score is 6.5 out of 10.