DEBIAN-CVE-2026-45078

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Source

https://security-tracker.debian.org/tracker/CVE-2026-45078

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-45078.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-45078

Upstream

CVE-2026-45078

Withdrawn

2026-08-11T20:49:48Z

Published

2026-05-28T17:16:31Z

Modified

2026-08-11T20:49:48Z

Severity

5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, local authenticated users can cause Synapse to starve other requests of CPU and lead to other requests failing, causing other users to be denied service. This vulnerability is fixed in 1.152.1.

References

https://security-tracker.debian.org/tracker/CVE-2026-45078

Affected packages

Debian:14 / matrix-synapse

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1.152.1-1

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

1.139.2-1

1.143.0-1

1.143.0-2

1.146.0-1

1.146.0-2

1.146.0-3

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-45078.json"