CVE-2026-79650

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in, but needs a user to act. Limited direct impact.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-10-09 11:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-20 12:42 UTC Last updatedMost recent change to the record

Details

Published

2026-10-09 11:17 UTC

Last modified

2026-10-20 12:42 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-601

Record status

Analyzed

Affected

• Apache Cxf < 3.6.13
• Apache Cxf < 4.1.9
• Apache Cxf < 4.2.4

Attack profile CVSS 3.1 · 6.1

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None