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Vulnerability details: VCID-w6fr-65fa-9yhb
Vulnerability ID VCID-w6fr-65fa-9yhb
Aliases CVE-2023-41335
GHSA-4f74-84v3-j9q5
PYSEC-2023-185
Summary 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.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-312 Cleartext Storage of Sensitive Information
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 3.7 https://github.com/matrix-org/synapse/pull/16272
cvssv3.1 3.7 https://github.com/matrix-org/synapse/security/advisories/GHSA-4f74-84v3-j9q5
Reference id Reference type URL
https://github.com/matrix-org/synapse
https://github.com/matrix-org/synapse/commit/69b74d9330e42fc91a9c7423d00a06cd6d3732bf
https://github.com/matrix-org/synapse/pull/13188
https://github.com/matrix-org/synapse/pull/16272
https://github.com/matrix-org/synapse/security/advisories/GHSA-4f74-84v3-j9q5
https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-185.yaml
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2AFB2Y3S2VCPCN5P2XCZTG24MBMZ7DM4
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/65QPC55I4D27HIZP7H2NQ34EOXHPP4AO
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N6P4QULVUE254WI7XF2LWWOGHCYVFXFY
https://security.gentoo.org/glsa/202401-12
CVE-2023-41335 https://nvd.nist.gov/vuln/detail/CVE-2023-41335
GHSA-4f74-84v3-j9q5 https://github.com/advisories/GHSA-4f74-84v3-j9q5
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N Found at https://github.com/matrix-org/synapse/pull/16272
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N Found at https://github.com/matrix-org/synapse/security/advisories/GHSA-4f74-84v3-j9q5
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

No EPSS data available for this vulnerability.

Date Actor Action Source VulnerableCode Version
2026-06-02T04:19:37.296774+00:00 Pypa Importer Import https://github.com/pypa/advisory-database/blob/main/vulns/matrix-synapse/PYSEC-2023-185.yaml 38.6.0