Medium severity6.5NVD Advisory· Published Jun 12, 2026· Updated Aug 7, 2026
CVE-2026-50630
CVE-2026-50630
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 or 3.6.12, which fixes this issue.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.apache.cxf:cxf-rt-rs-security-oauth2Maven | >= 4.2.0, < 4.2.2 | 4.2.2 |
org.apache.cxf:cxf-rt-rs-security-oauth2Maven | < 4.1.7 | 4.1.7 |
Affected products
3- Range: before 4.2.2, 4.1.7, 3.6.12
Patches
Vulnerability mechanics
References
4- www.openwall.com/lists/oss-security/2026/06/11/7nvdMailing ListThird Party AdvisoryWEB
- github.com/advisories/GHSA-xf62-wr5p-5p95ghsaADVISORY
- lists.apache.org/thread/bt7vnjzzkpd6vdhkxv103poor1jy5trmnvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-50630ghsaADVISORY
News mentions
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