OpenTalk v25.1.5 released

Wolfgang Silbermayr w.silbermayr at opentalk.eu
Mon Sep 8 14:44:32 CEST 2025


We are happy to announce a new OpenTalk release.

This release addresses a security flaw that was identified by the development
team. Please install this update if you run an earlier version of OpenTalk
v25.1.

Please see the release page [0] for the HTML version of the release notes.

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                                OpenTalk v25.1.5

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Release notes

   Security measures against eavesdropping

    An attacker can re-join the meeting without being noticed, and continue
    to receive media streams after they left. This can not be prevented
    entirely with the current technology stack, but it can be detected.

    To mitigate eavesdropping, the presence of unrecognized participants is
    now detected and a warning is shown to the other participants in the
    conference.

    The attack requires access to a meeting room, either by being
    authenticated, or by an invite link.

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Component versions

    Category             Component             Version
    Frontend             web-frontend          v2.4.5
    Services             controller            v0.29.6
    Services             controller-enterprise v0.29.6
    Services             obelisk               v0.19.6
    Services             recorder              v0.14.2
    Services             smtp-mailer           v0.13.1
    Documentation        ot-setup              v25.1.5
    3rd-Party Components ot-spacedeck          v2.0.2
    3rd-Party Components ot-etherpad           v2.0.1
    3rd-Party Components livekit-server        v1.8.4
    3rd-Party Components keycloak              v20.0.5
    3rd-Party Components postgres              v15.12.0
    3rd-Party Components rabbitmq              v3.13.7
    3rd-Party Components redis                 v7.4.2
    3rd-Party Components minio                 RELEASE.2023-07-21T21-12-44Z

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web-frontend v2.4.5

   🚀 New features

      * Add wiretapping user notification (!2363)

   🐛 Bug fixes

      * (popout) Suppress eavesdropping notification (!2406)

obelisk v0.19.6

   🐛 Bug fixes

      * Udpate ezk-sip version which caused TLS transports to not be chosen
        (!286)
      * Avoid dropping packets when the internal RTP receiver falls behind
        (!278)

ot-setup v25.1.5

   Changed

      * Update container image versions related to the product version v25.1.5.

ot-spacedeck v2.0.2

   ⚙ Miscellaneous

      * (licenses) Migrate from dep5 to REUSE.toml format (!10)

ot-etherpad v2.0.1

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[0] https://docs.opentalk.eu/releases/25.1.5/


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