UBUNTU-CVE-2026-57963

An attacker who can send HTML chat messages via Matrix or XMPP can inject arbitrary styled content, phishing links, and CSS that manipulates the chat UI. This vulnerability was fixed in Thunderbird 152.0.1 and Thunderbird 140.12.1...

DEBIAN-CVE-2026-57963

An attacker who can send HTML chat messages via Matrix or XMPP can inject arbitrary styled content, phishing links, and CSS that manipulates the chat UI. This vulnerability was fixed in Thunderbird 152.0.1 and Thunderbird 140.12.1...

EUVD-2026-40862

An attacker who can send HTML chat messages via Matrix or XMPP can inject arbitrary styled content, phishing links, and CSS that manipulates the chat UI. This vulnerability was fixed in Thunderbird 152.0.1 and Thunderbird 140.12.1...

PT-2026-54448

Name of the Vulnerable Software and Affected Versions Thunderbird versions prior to 140.12.1 Thunderbird versions prior to 152.0.1 Description An attacker can inject arbitrary styled content, phishing links, and CSS to manipulate the chat UI by sending HTML chat messages via Matrix or XMPP...

TencentOS Server 3: thunderbird (TSSA-2023:0054)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2023:0054 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

CVE-2025-54315

The Matrix specification before 1.16 i.e., with a room version before 12 lacks create event uniqueness...

EUVD-2024-45920

Malicious code in bioql PyPI...

EUVD-2024-2434

Malicious code in bioql PyPI...

EUVD-2023-0132

Malicious code in bioql PyPI...

CVE-2025-54315

The Matrix specification before 1.16 i.e., with a room version before 12 lacks create event uniqueness...

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...

CVE-2023-38686

Removed by vendor...

Design/Logic Flaw

Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. In affected versions it may be possible for a deactivated user to login when using uncommon configurations. This only applies if any of the following are true: 1. JSON Web Tokens are enabled for login via the...

PYSEC-2023-84

Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. In affected versions it may be possible for a deactivated user to login when using uncommon configurations. This only applies if any of the following are true: 1. JSON Web Tokens are enabled for login via the...

CVE-2023-32682

Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. In affected versions it may be possible for a deactivated user to login when using uncommon configurations. This only applies if any of the following are true: 1. JSON Web Tokens are enabled for login via the...

CVE-2023-32683

Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. A discovered oEmbed or image URL can bypass the urlpreviewurlblacklist setting potentially allowing server side request forgery or bypassing network policies. Impact is limited to IP addresses allowed by the...

CVE-2023-32683 URL deny list bypass via oEmbed and image URLs when generating previews in Synapse

Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. A discovered oEmbed or image URL can bypass the urlpreviewurlblacklist setting potentially allowing server side request forgery or bypassing network policies. Impact is limited to IP addresses allowed by the...

CVE-2023-32683

Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. A discovered oEmbed or image URL can bypass the urlpreviewurlblacklist setting potentially allowing server side request forgery or bypassing network policies. Impact is limited to IP addresses allowed by the...

CVE-2023-32682 Improper checks for deactivated users during login in synapse

Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. In affected versions it may be possible for a deactivated user to login when using uncommon configurations. This only applies if any of the following are true: 1. JSON Web Tokens are enabled for login via the...

CVE-2023-32682

Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. In affected versions it may be possible for a deactivated user to login when using uncommon configurations. This only applies if any of the following are true: 1. JSON Web Tokens are enabled for login via the...