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...

GHSA-98PX-6486-J7QC Synapse has URL deny list bypass via oEmbed and image URLs when generating previews

Impact 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 urlpreviewiprangeblacklist setting by default this only allows public IPs and by t...

Synapse has URL deny list bypass via oEmbed and image URLs when generating previews

Impact 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 urlpreviewiprangeblacklist setting by default this only allows public IPs and by t...

GHSA-26C5-PPR8-F33P Synapse has improper checks for deactivated users during login

Impact It may be possible for a deactivated user to login when using uncommon configurations. This only applies if any of the following are true: JSON Web Tokens are enabled for login via the jwtconfig.enabled configuration setting The local password database is enabled via the...

Synapse has improper checks for deactivated users during login

Impact It may be possible for a deactivated user to login when using uncommon configurations. This only applies if any of the following are true: JSON Web Tokens are enabled for login via the jwtconfig.enabled configuration setting The local password database is enabled via the...

Matrix Synapse 授权问题漏洞

Matrix Synapse is a Matrix Management Server implementation from the Matrix Foundation in the UK. An authorization issue vulnerability exists in versions of Matrix Synapse prior to 1.85.0, which stems from the possibility that a deactivated user may log in while using an uncommon configuration...

Matrix Synapse 代码问题漏洞

Matrix Synapse is a Matrix Management Server implementation from the Matrix Foundation in the UK. A code issue vulnerability exists in Matrix Synapse versions prior to 1.85.0 that stems from the urlpreviewurlblacklist setting that can be bypassed via oEmbed or URL...

Denial Of Service (DoS)

matrix-synapse is vulnerable to Denial Of Service DoS. The vulnerability is due to faulty room state checks; if Synapse and a malicious homeserver are both in the same room, the malicious homeserver can trick Synapse into accepting rejected events into the state of the room, which can be exploite...

Denial Of Service (DoS)

matrix-synapse is vulnerable to Denial Of Service DoS. The vulnerability exists due to a lack of validation in the inviteroomstate, which allows an attacker to generate maliciously large invites and crash the application...

SUSE CVE-2022-39374

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. If Synapse and a malicious homeserver are both joined to the same room, the malicious homeserver can trick Synapse into accepting previously rejected events into its view of the current state of that...

SUSE CVE-2022-39335

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. The Matrix Federation API allows remote homeservers to request the authorization events in a room. This is necessary so that a homeserver receiving some events can validate that those events are...

SUSE CVE-2023-32323

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. A malicious user on a Synapse homeserver X with permission to create certain state events can disable outbound federation from X to an arbitrary homeserver Y. Synapse instances with federation disable...

CVE-2022-39374

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. If Synapse and a malicious homeserver are both joined to the same room, the malicious homeserver can trick Synapse into accepting previously rejected events into its view of the current state of that...

CVE-2023-32323

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. A malicious user on a Synapse homeserver X with permission to create certain state events can disable outbound federation from X to an arbitrary homeserver Y. Synapse instances with federation disable...

DEBIAN-CVE-2022-39374

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. If Synapse and a malicious homeserver are both joined to the same room, the malicious homeserver can trick Synapse into accepting previously rejected events into its view of the current state of that...

DEBIAN-CVE-2023-32323

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. A malicious user on a Synapse homeserver X with permission to create certain state events can disable outbound federation from X to an arbitrary homeserver Y. Synapse instances with federation disable...

DEBIAN-CVE-2022-39335

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. The Matrix Federation API allows remote homeservers to request the authorization events in a room. This is necessary so that a homeserver receiving some events can validate that those events are...

CVE-2022-39335

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. The Matrix Federation API allows remote homeservers to request the authorization events in a room. This is necessary so that a homeserver receiving some events can validate that those events are...

PYSEC-2023-66

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. If Synapse and a malicious homeserver are both joined to the same room, the malicious homeserver can trick Synapse into accepting previously rejected events into its view of the current state of that...

Code injection

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. A malicious user on a Synapse homeserver X with permission to create certain state events can disable outbound federation from X to an arbitrary homeserver Y. Synapse instances with federation disable...