https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sat, 17 Oct 2026 21:56:51 +0000 https://cve.radiocsirt.org/vuln/euvd-2026-28047 EUVD-2026-28047 https://cve.radiocsirt.org/vuln/euvd-2026-28047 https://cve.radiocsirt.org/vuln/fkie_cve-2021-32659 <p>Matrix-appservice-bridge is the bridging service for the Matrix communication program&#39;s application services. In versions 2.6.0 and earlier, if a bridge has room upgrade handling turned on in the configuration (the `roomUpgradeOpts` key when instantiating a new `Bridge` instance.), any `m.room.tombstone` event it encounters will be used to unbridge the current room and bridge into the target room. However, the target room `m.room.create` event is not checked to verify if the `predecessor` field contains the previous room. This means that any malicious admin of a bridged room can repoint the traffic to a different room without the new room being aware. Versions 2.6.1 and greater are patched. As a workaround, disabling the automatic room upgrade handling can be done by removing the `roomUpgradeOpts` key from the `Bridge` class options.</p> <p>Matrix-appservice-bridge is the bridging service for the Matrix communication program&#39;s application services. In versions 2.6.0 and earlier, if a bridge has room upgrade handling turned on in the configuration (the `roomUpgradeOpts` key when instantiating a new `Bridge` instance.), any `m.room.tombstone` event it encounters will be used to unbridge the current room and bridge into the target room. However, the target room `m.room.create` event is not checked to verify if the `predecessor` field contains the previous room. This means that any malicious admin of a bridged room can repoint the traffic to a different room without the new room being aware. Versions 2.6.1 and greater are patched. As a workaround, disabling the automatic room upgrade handling can be done by removing the `roomUpgradeOpts` key from the `Bridge` class options.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2021-32659 https://cve.radiocsirt.org/vuln/ghsa-35g4-qx3c-vjhx <p><strong>Affected:</strong> npm: matrix-appservice-bridge</p> <p>### Impact</p> <p>If a bridge has room upgrade handling turned on in the configuration (the `roomUpgradeOpts` key when instantiating a new `Bridge` instance.), any `m.room.tombstone` event it encounters will be used to unbridge the current room and bridge into the target room. However, the target room `m.room.create` event is not checked to verify if the `predecessor` field contains the previous room. This means that any mailcious admin of a bridged room can repoint the traffic to a different room without the new room being aware.</p> <p>### Patches</p> <p>Versions 2.6.1 and greater are patched.</p> <p>### Workarounds</p> <p>Disabling the automatic room upgrade handling can be done by removing the `roomUpgradeOpts` key from the `Bridge` class options.</p> <p>### References</p> <p>The issue is patched by https://github.com/matrix-org/matrix-appservice-bridge/pull/330</p> <p>### For more information]</p> <p>If you have any questions or comments about this advisory, email us at security@matrix.org.</p> <p><strong>Affected:</strong> npm: matrix-appservice-bridge</p> <p>### Impact</p> <p>If a bridge has room upgrade handling turned on in the configuration (the `roomUpgradeOpts` key when instantiating a new `Bridge` instance.), any `m.room.tombstone` event it encounters will be used to unbridge the current room and bridge into the target room. However, the target room `m.room.create` event is not checked to verify if the `predecessor` field contains the previous room. This means that any mailcious admin of a bridged room can repoint the traffic to a different room without the new room being aware.</p> <p>### Patches</p> <p>Versions 2.6.1 and greater are patched.</p> <p>### Workarounds</p> <p>Disabling the automatic room upgrade handling can be done by removing the `roomUpgradeOpts` key from the `Bridge` class options.</p> <p>### References</p> <p>The issue is patched by https://github.com/matrix-org/matrix-appservice-bridge/pull/330</p> <p>### For more information]</p> <p>If you have any questions or comments about this advisory, email us at security@matrix.org.</p> https://cve.radiocsirt.org/vuln/ghsa-35g4-qx3c-vjhx https://cve.radiocsirt.org/vuln/gsd-2021-32659 gsd-2021-32659 https://cve.radiocsirt.org/vuln/gsd-2021-32659