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CVE-2026-79650 Apache CXF’s OIDC relying-party component could redirect users to an attacker-controlled URL after successful…

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.

Affected products and versions

Product Affected versions Fixed in
Apache CXF 4.2 4.2.0 → < 4.2.4 4.2.4
Apache CXF 4.0 4.0.0 → < 4.1.9 4.1.9
Apache CXF 3.6 earliest → < 3.6.13 3.6.13

References

Timeline

  1. Published
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