matrix-synapse vulnerable to temporary storage of plaintext passwords during password changes
Impact
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.
Patches
https://github.com/matrix-org/synapse/pull/16272
References
This bug was due to a regression in https://github.com/matrix-org/synapse/pull/13188.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Python (PyPI) | matrix-synapse | >= 1.66.0, < 1.93.0 | 1.93.0 |
Referencias
- https://github.com/matrix-org/synapse/pull/16272
- https://github.com/matrix-org/synapse/security/advisories/GHSA-4f74-84v3-j9q5
- https://nvd.nist.gov/vuln/detail/CVE-2023-41335
- https://github.com/matrix-org/synapse/pull/13188
- https://github.com/matrix-org/synapse/commit/69b74d9330e42fc91a9c7423d00a06cd6d3732bf
- https://github.com/matrix-org/synapse
- 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
- Vector CVSS
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N- Debilidad (CWE)
CWE-312- Plataforma
- Python (PyPI)
- Paquete
matrix-synapse- Publicada
- 26.09.2023
- Actualizado
- 11.10.2026 15:17
Fuentes y licencias
OSV / GitHub Advisory Database - PYSEC-2023-185 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-4f74-84v3-j9q5 - CC BY 4.0
Historial de vulnerabilidades: matrix-synapse
Todas las vulnerabilidades publicadas de este paquete (Python (PyPI)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 45
- Primera → última
- 03.2019 05.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 21
- Media 21
- Baja 3
Divulgaciones por año
- 2019: 3
- 2020: 3
- 2021: 12
- 2022: 7
- 2023: 9
- 2024: 7
- 2025: 2
- 2026: 2
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matrix-synapse vulnerable to temporary storage of plaintext passwords during password changes esta entrada
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