VYPR
Medium severity5.0NVD Advisory· Published May 26, 2023· Updated Jun 17, 2026

CVE-2022-39335

CVE-2022-39335

Description

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. The Matrix Federation API allows remote homeservers to request the authorization events in a room. This is necessary so that a homeserver receiving some events can validate that those events are legitimate and permitted in their room. However, in versions of Synapse up to and including 1.68.0, a Synapse homeserver answering a query for authorization events does not sufficiently check that the requesting server should be able to access them. The issue was patched in Synapse 1.69.0. Homeserver administrators are advised to upgrade.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
matrix-synapsePyPI
< 1.69.01.69.0

Affected products

3
  • cpe:2.3:a:matrix:synapse:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:matrix:synapse:*:*:*:*:*:*:*:*range: <1.69.0
    • (no CPE)range: < 1.69.0
  • ghsa-coords
    Range: < 1.69.0

Patches

Vulnerability mechanics

References

8

News mentions

0

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