CVE-2026-79650

Apache CXF: OIDC RP Open Redirect

State: Published
Severity: 6.1 Medium
Published: Oct 9, 2026
Updated: Oct 15, 2026
Reserved: Aug 25, 2026

Description

Apache CXF’s OIDC relying-party component could redirect users to an attacker-controlled URL after successful authentication. The issue occurs because attacker-controlled state parameters are preserved and later used as redirect targets without validating that the final decoded URI belongs to the RP’s origin. Both directly encoded and double-encoded external URLs can trigger the issue, depending on which validation path is used. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.

Scores

CVSS	Score	Vector	Source
3.1	6.1 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	CISA-ADP

Weaknesses

CWE-601 URL redirection to untrusted site ('open redirect')

Affected Products

Product	Versions
Apache CXFApache Software Foundation	4.2.0 to before 4.2.4Affected 4.0.0 to before 4.1.9Affected before 3.6.13Affected

References

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