Technology · PyPI
matrix-sydent (PyPI) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 7 vulnerabilities in matrix-sydent (PyPI): 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2019-11842, was published on 9 July 2026.
- Last 7 days
- 0
- Last 90 days
- 2
- Critical, all time
- 0
- Exploited in the wild
- 0
Latest matrix-sydent (PyPI) vulnerabilities
- CVE-2019-11842: PYSEC-2026-2620 - matrix-sydent and matrix-synapse Use Cryptographically Weak PRNGlowCVSS 3EPSS 1.8%
- CVE-2019-11340: PYSEC-2026-843 - Matrix Sydent mishandles emailslowCVSS 3EPSS 1.9%
- CVE-2023-38686: PYSEC-2023-139 - Sydent is an identity server for the Matrix communications protocol. Prior to version 2.5.6, if…lowCVSS 3.1EPSS 0.3%
- CVE-2021-29432: PYSEC-2021-23 - Sydent is a reference matrix identity server. A malicious user could abuse Sydent to send out arbitrary…lowCVSS 3.1EPSS 0.9%
- CVE-2021-29431: PYSEC-2021-22 - Sydent is a reference Matrix identity server. Sydent can be induced to send HTTP GET requests to internal…lowCVSS 3.1EPSS 1.2%
- CVE-2021-29430: PYSEC-2021-21 - Sydent is a reference Matrix identity server. Sydent does not limit the size of requests it receives from…lowCVSS 3.1EPSS 1.8%
- CVE-2021-29433: PYSEC-2021-24 - ### Impact Missing input validation of some parameters on the endpoints used to confirm third-party…lowCVSS 3.1EPSS 0.9%
Most severe matrix-sydent (PyPI) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2021-29430: PYSEC-2021-21 - Sydent is a reference Matrix identity server. Sydent does not limit the size of requests it receives from…lowCVSS 3.1EPSS 1.8%
- CVE-2021-29431: PYSEC-2021-22 - Sydent is a reference Matrix identity server. Sydent can be induced to send HTTP GET requests to internal…lowCVSS 3.1EPSS 1.2%
- CVE-2021-29432: PYSEC-2021-23 - Sydent is a reference matrix identity server. A malicious user could abuse Sydent to send out arbitrary…lowCVSS 3.1EPSS 0.9%
- CVE-2021-29433: PYSEC-2021-24 - ### Impact Missing input validation of some parameters on the endpoints used to confirm third-party…lowCVSS 3.1EPSS 0.9%
- CVE-2023-38686: PYSEC-2023-139 - Sydent is an identity server for the Matrix communications protocol. Prior to version 2.5.6, if…lowCVSS 3.1EPSS 0.3%
- CVE-2019-11340: PYSEC-2026-843 - Matrix Sydent mishandles emailslowCVSS 3EPSS 1.9%
- CVE-2019-11842: PYSEC-2026-2620 - matrix-sydent and matrix-synapse Use Cryptographically Weak PRNGlowCVSS 3EPSS 1.8%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 2 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/matrix-sydent.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "matrix-sydent (PyPI) vulnerabilities", https://junglewise.ai/threats/technologies/matrix-sydent, 26 September 2026.