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RedhatCVE
RedhatCVE
added 2026/01/09 10:11 a.m.5 views

CVE-2019-11340

util/emailutils.py in Matrix Sydent before 1.0.2 mishandles registration restrictions that are based on e-mail domain, if the allowedlocal3pids option is enabled. This occurs because of potentially unwanted behavior in Python, in which an email.utils.parseaddr call on...

5.9CVSS6.7AI score0.00665EPSS
Exploits0References1
RedhatCVE
RedhatCVE
added 2026/01/09 10:9 a.m.6 views

CVE-2019-11842

An issue was discovered in Matrix Sydent before 1.0.3 and Synapse before 0.99.3.1. Random number generation is mishandled, which makes it easier for attackers to predict a Sydent authentication token or a Synapse random ID...

7.5CVSS6.9AI score0.00407EPSS
Exploits0References1
EUVD
EUVD
added 2025/10/07 12:30 a.m.1 views

EUVD-2021-0120

Malware in sbrugna...

7.7CVSS6.7AI score0.00303EPSS
Exploits0References10
EUVD
EUVD
added 2025/10/07 12:30 a.m.1 views

EUVD-2019-0082

Malware in sbrugna...

7.5CVSS7.6AI score0.00407EPSS
Exploits0References5
EUVD
EUVD
added 2025/10/07 12:30 a.m.1 views

EUVD-2021-0121

Malware in sbrugna...

5.7CVSS5.6AI score0.0025EPSS
Exploits0References7
EUVD
EUVD
added 2025/10/03 8:7 p.m.3 views

EUVD-2022-4932

Malicious code in bioql PyPI...

5.9CVSS6.2AI score0.00665EPSS
Exploits0References7
Tenable Nessus
Tenable Nessus
added 2025/08/21 12:0 a.m.3 views

Linux Distros Unpatched Vulnerability : CVE-2023-38686

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Sydent is an identity server for the Matrix communications protocol. Prior to version 2.5.6, if configured to send emails using TLS, Sydent does not verify SMTP...

9.3CVSS6.7AI score0.00064EPSS
Exploits0References2
RedhatCVE
RedhatCVE
added 2025/05/23 2:20 a.m.4 views

CVE-2023-38686

Sydent is an identity server for the Matrix communications protocol. Prior to version 2.5.6, if configured to send emails using TLS, Sydent does not verify SMTP servers' certificates. This makes Sydent's emails vulnerable to interception via a man-in-the-middle MITM attack. Attackers with...

9.3CVSS6.5AI score0.00064EPSS
Exploits0References1
RedhatCVE
RedhatCVE
added 2025/05/22 9:24 p.m.5 views

CVE-2021-29432

Sydent is a reference matrix identity server. A malicious user could abuse Sydent to send out arbitrary emails from the Sydent email address. This could be used to construct plausible phishing emails, for example. This issue has been fixed in 4469d1d...

5.7CVSS6.8AI score0.0025EPSS
Exploits0References1
RedhatCVE
RedhatCVE
added 2025/05/22 9:23 p.m.7 views

CVE-2021-29431

Sydent is a reference Matrix identity server. Sydent can be induced to send HTTP GET requests to internal systems, due to lack of parameter validation or IP address blacklisting. It is not possible to exfiltrate data or control request headers, but it might be possible to use the attack to perfor...

7.7CVSS6.7AI score0.00303EPSS
Exploits0References1
RedhatCVE
RedhatCVE
added 2025/05/22 7:36 p.m.5 views

CVE-2021-29430

Sydent is a reference Matrix identity server. Sydent does not limit the size of requests it receives from HTTP clients. A malicious user could send an HTTP request with a very large body, leading to memory exhaustion and denial of service. Sydent also does not limit response size for requests it...

7.5CVSS6.9AI score0.01367EPSS
Exploits0References1
RedhatCVE
RedhatCVE
added 2025/05/22 7:35 p.m.5 views

CVE-2021-29433

Sydent is a reference Matrix identity server. In Sydent versions 2.2.0 and prior, sissing input validation of some parameters on the endpoints used to confirm third-party identifiers could cause excessive use of disk space and memory leading to resource exhaustion. A patch for the vulnerability i...

4.3CVSS6.7AI score0.00281EPSS
Exploits0References1
OpenVAS
OpenVAS
added 2023/09/19 12:0 a.m.13 views

Fedora: Security Advisory for python-matrix-common (FEDORA-2023-c0696d7b53)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

6.5CVSS6.6AI score0.00169EPSS
Exploits1References2
Fedora
Fedora
added 2023/09/18 1:37 a.m.21 views

[SECURITY] Fedora 37 Update: python-matrix-common-1.3.0-7.fc37

Common utilities for Synapse, Sydent and Sygnal...

6.5CVSS7.1AI score0.00169EPSS
Exploits1
NVD
NVD
added 2023/08/04 4:15 p.m.18 views

CVE-2023-38686

Sydent is an identity server for the Matrix communications protocol. Prior to version 2.5.6, if configured to send emails using TLS, Sydent does not verify SMTP servers' certificates. This makes Sydent's emails vulnerable to interception via a man-in-the-middle MITM attack. Attackers with...

9.3CVSS9.1AI score0.00064EPSS
Exploits0References7
UbuntuCve
UbuntuCve
added 2023/08/04 4:15 p.m.19 views

CVE-2023-38686

Sydent is an identity server for the Matrix communications protocol. Prior to version 2.5.6, if configured to send emails using TLS, Sydent does not verify SMTP servers' certificates. This makes Sydent's emails vulnerable to interception via a man-in-the-middle MITM attack. Attackers with...

9.3CVSS6.8AI score0.00064EPSS
Exploits0References9
OSV
OSV
added 2023/08/04 4:15 p.m.15 views

PYSEC-2023-139

Sydent is an identity server for the Matrix communications protocol. Prior to version 2.5.6, if configured to send emails using TLS, Sydent does not verify SMTP servers' certificates. This makes Sydent's emails vulnerable to interception via a man-in-the-middle MITM attack. Attackers with...

5.3CVSS6.5AI score0.00064EPSS
Exploits0References7
Prion
Prion
added 2023/08/04 4:15 p.m.11 views

Code injection

Sydent is an identity server for the Matrix communications protocol. Prior to version 2.5.6, if configured to send emails using TLS, Sydent does not verify SMTP servers' certificates. This makes Sydent's emails vulnerable to interception via a man-in-the-middle MITM attack. Attackers with...

1.8CVSS5AI score0.00064EPSS
Exploits0References7Affected Software1
OSV
OSV
added 2023/08/04 4:15 p.m.0 views

UBUNTU-CVE-2023-38686

Sydent is an identity server for the Matrix communications protocol. Prior to version 2.5.6, if configured to send emails using TLS, Sydent does not verify SMTP servers' certificates. This makes Sydent's emails vulnerable to interception via a man-in-the-middle MITM attack. Attackers with...

9.3CVSS6.8AI score0.00064EPSS
Exploits0References9
PyPA
PyPA
added 2023/08/04 4:15 p.m.5 views

PYSEC-2023-139

Sydent is an identity server for the Matrix communications protocol. Prior to version 2.5.6, if configured to send emails using TLS, Sydent does not verify SMTP servers' certificates. This makes Sydent's emails vulnerable to interception via a man-in-the-middle MITM attack. Attackers with...

9.3CVSS6.8AI score0.00064EPSS
Exploits0References8Affected Software1
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