CVE-2023-41335

LowCVSS 3.7/10Last modified Jun 17, 2026

Description

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. When users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration. These temporarily stored passwords are automatically erased after a 48-hour window. This issue has been addressed in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.

Metrics

CVSS 3.1 3.7/10CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-312

Affected software

No affected versions have been published.

Timeline

Published: Sep 27, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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