OIDC OP v4.3.0 and OIDC RP Authentication Proxy v2.3.0 Now Available

Philip Smart Philip.Smart at jisc.ac.uk
Mon Jun 23 14:56:36 UTC 2025


The Shibboleth Project has released V4.3.0 of the OIDC OP plugin (see release notes at [1]) and V2.3.0 of the OIDC RP authentication proxy plugin (see release notes in [2]).

Both releases accompany, and require, a new version of the OIDC commons library (see release notes at [3]) and OIDC config module.

Among the new features and bug fixes, both the OP and RP now include safeguards against audience injection attacks that could result from third-party software behavior, see the release notes. Importantly, our software was not directly vulnerable to these attacks, but we’ve added these configurable protections as a proactive measure.

-- Henri Mikkonen and Phil Smart, on behalf of the team

[1] https://shibboleth.atlassian.net/wiki/spaces/IDPPLUGINS/pages/2776760321/OPReleaseNotes

[2] https://shibboleth.atlassian.net/wiki/spaces/IDPPLUGINS/pages/3239968769/OIDCRelyingPartyAuthnConfigurationReleaseNotes

[3] https://shibboleth.atlassian.net/wiki/spaces/IDPPLUGINS/pages/3232137218/OIDCCommonReleaseNotes

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