Is CVE-2026-50630 in the CISA KEV catalog?

No. CVE-2026-50630 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-50630?

CVE-2026-50630 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2026-50630?

CVE-2026-50630 has an EPSS score of 0.40% (32th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2026-50630

MEDIUM

6.5

CVSS v3

NVD

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.

CWE-113

How to fix

Remediation Available

cxfNVD

Affected:>= 4.2.0, < 4.2.2Fixed in:4.2.2CVE-2026-50630derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.40%probability of exploitation in 30 days

32ndpercentile

Low risk: more likely to be exploited than 32% of all known CVEs.

References

Vendor Advisory1

lists.apache.org

Third-Party Advisory1

openwall.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-12.