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.
Published: 2023-09-26
Score: 3.7 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2023-0134 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.
Github GHSA Github GHSA GHSA-4f74-84v3-j9q5 matrix-synapse vulnerable to temporary storage of plaintext passwords during password changes
Ubuntu USN Ubuntu USN USN-7444-1 Synapse vulnerabilities
History

Thu, 13 Feb 2025 17:15:00 +0000

Type Values Removed Values Added
Title Temporary storage of plaintext passwords during password changes in matrix synapse Temporary storage of plaintext passwords during password changes in matrix synapse

Subscriptions

Fedoraproject Fedora
Matrix Synapse
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-02-13T17:09:01.354Z

Reserved: 2023-08-28T16:56:43.367Z

Link: CVE-2023-41335

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-09-27T15:19:30.283

Modified: 2024-11-21T08:21:06.040

Link: CVE-2023-41335

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses