CVE-2026-50630

Name: CVE-2026-50630
Creator: NVD / NIST
Published: 2026-06-12T10:16:22.95+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2026-50630 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS Probability

0.40%

32.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-113

Affected Software

Vendor	Product	Versions
Apache	Cxf	< 4.1.7
Apache	Cxf	>= 4.2.0, < 4.2.2

References

https://lists.apache.org/thread/bt7vnjzzkpd6vdhkxv103poor1jy5trmVendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/11/7Mailing List, Third Party Advisory

Timeline

Published: Jun 12, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-50630?

How severe is CVE-2026-50630?

CVE-2026-50630 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2026-50630?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-50630?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST