DEBIAN-CVE-2025-61672

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Source

https://security-tracker.debian.org/tracker/CVE-2025-61672

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-61672.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-61672

Upstream

CVE-2025-61672

Published

2025-10-08T15:16:25.110Z

Modified

2025-11-20T10:18:26.689520Z

Severity

5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Summary

[none]

Details

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.

References

https://security-tracker.debian.org/tracker/CVE-2025-61672

Affected packages

Debian:14 / matrix-synapse

Package

Name: matrix-synapse
Purl: pkg:deb/debian/matrix-synapse?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.139.2-1

Affected versions

0.*

0.19.2+dfsg-3

0.19.2+dfsg-4

0.19.2+dfsg-5

0.19.2+dfsg-6

0.24.0+dfsg-1

0.27.2+dfsg-1

0.28.0+dfsg-1

0.28.0+dfsg-2

0.28.1+dfsg-1

0.29.1+dfsg-1

0.30.0+dfsg-1

0.31.0+dfsg-1

0.31.0+dfsg-2

0.31.1+dfsg-1

0.31.1+dfsg-2

0.31.2+dfsg-1

0.32.2+dfsg-1

0.33.0+dfsg-1

0.33.1+dfsg-1

0.33.2+dfsg-1

0.33.2+dfsg-2

0.33.2+dfsg-3

0.33.3-1

0.33.3-2

0.33.3.1-1

0.33.4-1~bpo9+1

0.33.4-1

0.33.8-1

0.33.9-2~bpo9+1

0.33.9-2

0.34.0~rc2-1

0.34.0-1

0.34.0-2

0.34.0-3~bpo9+1

0.34.0-3~bpo9+2

0.34.0-3

0.34.1.1-1

0.34.1.1-2~bpo9+1

0.34.1.1-2

0.34.1.1-3~bpo9+1

0.34.1.1-3~bpo9+2

0.34.1.1-3

0.34.1.1-4

0.99.0-1~bpo9+1

0.99.0-1~bpo9+2

0.99.0-1~bpo9+3

0.99.0-1

0.99.1.1-1

0.99.2-1~bpo9+1

0.99.2-1~bpo9+2

0.99.2-1

0.99.2-2

0.99.2-3

0.99.2-4

0.99.2-5~bpo9+1

0.99.2-5

0.99.2-6

0.99.3.2-1

0.99.5.1-1

0.99.5.2-1

1.*

1.0.0-1

1.0.0-2~bpo10+1

1.0.0-2

1.1.0-1

1.2.1-1~bpo10+1

1.2.1-1~bpo10+2

1.2.1-1

1.2.1-2

1.3.0-1~bpo10+1

1.3.0-1

1.4.0~rc1-1

1.4.0-1

1.5.0~rc1-1

1.5.0-1

1.5.1-1~bpo10+1

1.5.1-1

1.6.0-1

1.6.1-1~bpo10+1

1.6.1-1

1.7.0-1

1.7.0-2

1.7.1-1

1.7.2-1~bpo10+1

1.7.2-1

1.7.3-1~bpo10+1

1.7.3-1

1.8.0-1

1.9.0-1~bpo10+1

1.9.0-1

1.9.1-1~bpo10+1

1.9.1-1

1.10.0-1

1.10.0-2

1.11.0-1

1.11.1-1~bpo10+1

1.11.1-1

1.12.0-1~bpo10+1

1.12.0-1

1.12.3-1~bpo10+1

1.12.3-1

1.12.4-1~bpo10+1

1.12.4-1

1.13.0-1~bpo10+1

1.13.0-1

1.15.0-1

1.15.1-1~bpo10+1

1.15.1-1~bpo10+2

1.15.1-1

1.15.2-1

1.16.0-1

1.17.0-1~bpo10+1

1.17.0-1

1.18.0-1~bpo10+1

1.18.0-1

1.19.0-1~bpo10+1

1.19.0-1

1.19.1-1~bpo10+1

1.19.1-1~bpo10+2

1.19.1-1~bpo10+3

1.19.1-1

1.19.2-1

1.19.3-1

1.20.0-1

1.20.1-1~bpo10+1

1.20.1-1

1.21.1-1

1.21.2-1~bpo10+1

1.21.2-1

1.22.1-1~bpo10+1

1.22.1-1

1.22.1-2~bpo10+1

1.22.1-2

1.23.0-1~bpo10+1

1.23.0-1

1.24.0-1~bpo10+1

1.24.0-1

1.24.0-2

1.25.0-1~bpo10+1

1.25.0-1

1.25.0-2

1.26.0-1~bpo10+1

1.26.0-1~bpo10+2

1.26.0-1~bpo10+3

1.26.0-1

1.26.0-2

1.26.0-3

1.27.0-1~bpo10+1

1.27.0-1~bpo10+2

1.27.0-1~bpo10+3

1.27.0-1

1.28.0-1~bpo10+1

1.28.0-1~bpo10+2

1.28.0-1

1.29.0-1

1.30.0-1

1.31.0-1

1.31.0-2

1.33.2-1

1.34.0-1

1.35.0-1

1.35.1-1

1.36.0-1

1.37.0-1

1.37.1-1

1.38.0-1

1.38.1-1

1.39.0-1

1.40.0-1~bpo10+1

1.40.0-1~bpo11+1

1.40.0-1

1.41.1-1~bpo10+1

1.41.1-1~bpo11+1

1.41.1-1

1.42.0-1~bpo10+1

1.42.0-1~bpo11+1

1.42.0-1

1.43.0-1~bpo10+1

1.43.0-1~bpo11+1

1.43.0-1

1.44.0-1~bpo10+1

1.44.0-1~bpo11+1

1.44.0-1

1.44.0-2

1.45.0-1

1.45.1-1~bpo10+1

1.45.1-1~bpo11+1

1.45.1-1

1.46.0-1~bpo10+1

1.46.0-1~bpo10+2

1.46.0-1~bpo11+1

1.46.0-1~bpo11+2

1.46.0-1~bpo11+3

1.46.0-1

1.47.0-1

1.47.0-2~bpo10+1

1.47.0-2~bpo11+1

1.47.0-2

1.47.1-1~bpo10+1

1.47.1-1~bpo11+1

1.47.1-1

1.48.0-1~bpo10+1

1.48.0-1~bpo11+1

1.48.0-1

1.49.0-1~bpo10+1

1.49.0-1~bpo10+2

1.49.0-1~bpo10+4

1.49.0-1~bpo11+1

1.49.0-1~bpo11+2

1.49.0-1~bpo11+3

1.49.0-1

1.49.2-1

1.50.0-1

1.50.1-1

1.50.2-1

1.51.0-1~bpo10+1

1.51.0-1~bpo10+2

1.51.0-1~bpo10+3

1.51.0-1~bpo11+1

1.51.0-1~bpo11+2

1.51.0-1

1.52.0-1~bpo10+1

1.52.0-1~bpo11+1

1.52.0-1

1.53.0-1~bpo11+1

1.53.0-1

1.55.0-1~bpo11+1

1.55.0-1

1.55.0-2

1.56.0-1

1.57.1-1~bpo11+1

1.57.1-1

1.59.1-1

1.59.1-2~bpo11+1

1.59.1-2

1.61.0-1~bpo11+1

1.61.0-1~bpo11+2

1.61.0-1~bpo11+3

1.61.0-1

1.61.0-2

1.61.0-3

1.61.1-1

1.63.0-1~bpo11+1

1.63.0-1

1.64.0-1

1.64.0-2

1.64.0-3

1.65.0-1

1.66.0-1~bpo11+1

1.66.0-1

1.66.0-2

1.68.0-1~bpo11+1

1.68.0-1

1.69.0-1~bpo11+1

1.69.0-1

1.70.1-1~bpo11+1

1.70.1-1

1.71.0-1

1.71.0-2~bpo11+1

1.71.0-2

1.72.0-1~bpo11+1

1.72.0-1

1.73.0-1~bpo11+1

1.73.0-1

1.74.0-1~bpo11+1

1.74.0-1~bpo11+2

1.74.0-1

1.77.0-1

1.78.0-1~bpo11+1

1.78.0-1

1.90.0-1

1.91.2-1

1.91.2-2~bpo12+1

1.91.2-2

1.92.0-1

1.92.0-2

1.92.0-3~bpo12+1

1.92.0-3

1.93.0-1

1.94.0-1~bpo12+1

1.94.0-1

1.95.0-1~bpo12+1

1.95.0-1

1.95.1-1~bpo12+1

1.95.1-1

1.97.0-1

1.99.0-1

1.99.0-2

1.99.0-3

1.100.0-1

1.103.0-1

1.103.0-2

1.103.0-3

1.103.0-4

1.103.0-5

1.116.0-1

1.116.0-2

1.116.0-3

1.116.0-4

1.121.0-1

1.121.0-2

1.121.0-4

1.121.0-5

1.121.0-6

1.128.0-1

1.136.0-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-61672.json"