https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sat, 03 Oct 2026 08:38:24 +0000 https://cve.radiocsirt.org/vuln/euvd-2026-255153 EUVD-2026-255153 https://cve.radiocsirt.org/vuln/euvd-2026-255153 https://cve.radiocsirt.org/vuln/fkie_cve-2025-61672 <p>Synapse is an open source Matrix homeserver implementation. Lack of validation for device keys in Synapse before 1.138.3 and in Synapse 1.139.0 allow an attacker registered on the victim homeserver to degrade federation functionality, unpredictably breaking outbound federation to other homeservers. The issue is patched in Synapse 1.138.3, 1.138.4, 1.139.1, and 1.139.2. Note that even though 1.138.3 and 1.139.1 fix the vulnerability, they inadvertently introduced an unrelated regression. For this reason, the maintainers of Synapse recommend skipping these releases and upgrading straight to 1.138.4 and 1.139.2.</p> <p>Synapse is an open source Matrix homeserver implementation. Lack of validation for device keys in Synapse before 1.138.3 and in Synapse 1.139.0 allow an attacker registered on the victim homeserver to degrade federation functionality, unpredictably breaking outbound federation to other homeservers. The issue is patched in Synapse 1.138.3, 1.138.4, 1.139.1, and 1.139.2. Note that even though 1.138.3 and 1.139.1 fix the vulnerability, they inadvertently introduced an unrelated regression. For this reason, the maintainers of Synapse recommend skipping these releases and upgrading straight to 1.138.4 and 1.139.2.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2025-61672 https://cve.radiocsirt.org/vuln/ghsa-fh66-fcv5-jjfr <p><strong>Affected:</strong> PyPI: matrix-synapse</p> <p>### Impact</p> <p>Lack of validation for device keys in Synapse before 1.138.3 and in Synapse 1.139.0 allow an attacker registered on the victim homeserver to degrade federation functionality, unpredictably breaking outbound federation to other homeservers.</p> <p>### Patches</p> <p>Patched in Synapse 1.138.3, 1.138.4, 1.139.1, and 1.139.2.</p> <p>Note that even though 1.138.3 and 1.139.1 fix the vulnerability, they inadvertently introduced an unrelated regression. For this reason, it is recommend to skip these releases and upgrading straight to 1.138.4 and 1.139.2.</p> <p>### Workarounds</p> <p>The vulnerability can only be exploited by users registered on the victim homeserver.</p> <p><strong>Affected:</strong> PyPI: matrix-synapse</p> <p>### Impact</p> <p>Lack of validation for device keys in Synapse before 1.138.3 and in Synapse 1.139.0 allow an attacker registered on the victim homeserver to degrade federation functionality, unpredictably breaking outbound federation to other homeservers.</p> <p>### Patches</p> <p>Patched in Synapse 1.138.3, 1.138.4, 1.139.1, and 1.139.2.</p> <p>Note that even though 1.138.3 and 1.139.1 fix the vulnerability, they inadvertently introduced an unrelated regression. For this reason, it is recommend to skip these releases and upgrading straight to 1.138.4 and 1.139.2.</p> <p>### Workarounds</p> <p>The vulnerability can only be exploited by users registered on the victim homeserver.</p> https://cve.radiocsirt.org/vuln/ghsa-fh66-fcv5-jjfr https://cve.radiocsirt.org/vuln/opensuse-su-2025:15603-1 <p>matrix-synapse-1.139.1-1.1 on GA media</p> <p>matrix-synapse-1.139.1-1.1 on GA media</p> https://cve.radiocsirt.org/vuln/opensuse-su-2025:15603-1 https://cve.radiocsirt.org/vuln/pysec-2026-1612 <p><strong>Affected:</strong> PyPI: matrix-synapse</p> <p>### Impact</p> <p>Lack of validation for device keys in Synapse before 1.138.3 and in Synapse 1.139.0 allow an attacker registered on the victim homeserver to degrade federation functionality, unpredictably breaking outbound federation to other homeservers.</p> <p>### Patches</p> <p>Patched in Synapse 1.138.3, 1.138.4, 1.139.1, and 1.139.2.</p> <p>Note that even though 1.138.3 and 1.139.1 fix the vulnerability, they inadvertently introduced an unrelated regression. For this reason, it is recommend to skip these releases and upgrading straight to 1.138.4 and 1.139.2.</p> <p>### Workarounds</p> <p>The vulnerability can only be exploited by users registered on the victim homeserver.</p> <p><strong>Affected:</strong> PyPI: matrix-synapse</p> <p>### Impact</p> <p>Lack of validation for device keys in Synapse before 1.138.3 and in Synapse 1.139.0 allow an attacker registered on the victim homeserver to degrade federation functionality, unpredictably breaking outbound federation to other homeservers.</p> <p>### Patches</p> <p>Patched in Synapse 1.138.3, 1.138.4, 1.139.1, and 1.139.2.</p> <p>Note that even though 1.138.3 and 1.139.1 fix the vulnerability, they inadvertently introduced an unrelated regression. For this reason, it is recommend to skip these releases and upgrading straight to 1.138.4 and 1.139.2.</p> <p>### Workarounds</p> <p>The vulnerability can only be exploited by users registered on the victim homeserver.</p> https://cve.radiocsirt.org/vuln/pysec-2026-1612 https://cve.radiocsirt.org/vuln/ubuntu-cve-2025-61672 <p><strong>Affected:</strong> Ubuntu:Pro:18.04:LTS: matrix-synapse, Ubuntu:Pro:20.04:LTS: matrix-synapse, Ubuntu:Pro:22.04:LTS: matrix-synapse, Ubuntu:24.04:LTS: matrix-synapse</p> <p>Synapse is an open source Matrix homeserver implementation. Lack of validation for device keys in Synapse before 1.138.3 and in Synapse 1.139.0 allow an attacker registered on the victim homeserver to degrade federation functionality, unpredictably breaking outbound federation to other homeservers. The issue is patched in Synapse 1.138.3, 1.138.4, 1.139.1, and 1.139.2. Note that even though 1.138.3 and 1.139.1 fix the vulnerability, they inadvertently introduced an unrelated regression. For this reason, the maintainers of Synapse recommend skipping these releases and upgrading straight to 1.138.4 and 1.139.2.</p> <p><strong>Affected:</strong> Ubuntu:Pro:18.04:LTS: matrix-synapse, Ubuntu:Pro:20.04:LTS: matrix-synapse, Ubuntu:Pro:22.04:LTS: matrix-synapse, Ubuntu:24.04:LTS: matrix-synapse</p> <p>Synapse is an open source Matrix homeserver implementation. Lack of validation for device keys in Synapse before 1.138.3 and in Synapse 1.139.0 allow an attacker registered on the victim homeserver to degrade federation functionality, unpredictably breaking outbound federation to other homeservers. The issue is patched in Synapse 1.138.3, 1.138.4, 1.139.1, and 1.139.2. Note that even though 1.138.3 and 1.139.1 fix the vulnerability, they inadvertently introduced an unrelated regression. For this reason, the maintainers of Synapse recommend skipping these releases and upgrading straight to 1.138.4 and 1.139.2.</p> https://cve.radiocsirt.org/vuln/ubuntu-cve-2025-61672