matrix-synapse-testutils (>=1.65.0.0, <=1.96.1.0) potentially affected by CVE-2026-45076 via matrix-synapse (>=1.65.0, <=1.96.1)

matrix-synapse PYPI version =1.65.0, =1.65.0.0, =1.96.1.0 Source cves: CVE-2026-45076 Source advisory: OSV:PYSEC-2026-194...

raiden (>=0.100.2rc4, <=0.100.3rc1) potentially affected by CVE-2026-45078 via matrix-synapse (0.33.9)

matrix-synapse PYPI version 0.33.9 is affected by a known vulnerability. The following packages have a transitive dependency on matrix-synapse and may be impacted: - raiden =0.100.2rc4, =0.100.3rc1 Source cves: CVE-2026-45078 Source advisory: OSV:PYSEC-2026-191...

CVE-2026-45078

Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, local authenticated users can cause Synapse to starve other requests of CPU and lead to other requests failing, causing other users to be denied service. This vulnerability is fixed in 1.152.1...

CVE-2026-45076

Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, in federated rooms, malicious homeservers can craft room events in such a way that prevents Synapse from providing full history to paginating clients. Clients could therefore fail to display room history. This...

EUVD-2026-32935

Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, local authenticated users can cause Synapse to starve other requests of CPU and lead to other requests failing, causing other users to be denied service. This vulnerability is fixed in 1.152.1...

CVE-2026-45078

Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, local authenticated users can cause Synapse to starve other requests of CPU and lead to other requests failing, causing other users to be denied service. This vulnerability is fixed in 1.152.1...

CVE-2026-45078

CVE-2026-45078 — Synapse CPU starvation (Denial of Service) Affected: Synapse (open source Matrix homeserver) before version 1.152.1. Issue: Local authenticated users can cause CPU starvation among concurrent requests, leading to other requests failing and denial of service for other users. Impac...

matrix-synapse-testutils (>=1.65.0.0, <=1.96.1.0), raiden (>=0.100.2rc4, <=0.100.3rc1) potentially affected by CVE-2026-45078 via matrix-synapse (>=0.33.9, <=1.96.1)

matrix-synapse PYPI version =0.33.9, =1.65.0.0, =0.100.2rc4, =0.100.3rc1 Source cves: CVE-2026-45078 Source advisory: MEND:CVE-2026-45078...

CVE-2026-45078

Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, local authenticated users can cause Synapse to starve other requests of CPU and lead to other requests failing, causing other users to be denied service. This vulnerability is fixed in 1.152.1...

matrix-synapse-testutils (>=1.65.0.0, <=1.96.1.0), raiden (>=0.100.2rc4, <=0.100.3rc1) potentially affected by CVE-2026-45076 via matrix-synapse (>=0.33.9, <=1.96.1)

matrix-synapse PYPI version =0.33.9, =1.65.0.0, =0.100.2rc4, =0.100.3rc1 Source cves: CVE-2026-45076 Source advisory: MEND:CVE-2026-45076...

PT-2026-45981

Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, local authenticated users can cause Synapse to starve other requests of CPU and lead to other requests failing, causing other users to be denied service. This vulnerability is fixed in 1.152.1...

CVE-2026-42553

Cinny is a Matrix client. Prior to 4.10.3, A remote authenticated attacker who shares a room with a victim and has permissions to create room emotes for example in a DM can cause the victim's client to send their Matrix access token to an attacker-controlled server. This occurs when the victim...

CVE-2026-42553

Cinny is a Matrix client. Prior to 4.10.3, A remote authenticated attacker who shares a room with a victim and has permissions to create room emotes for example in a DM can cause the victim's client to send their Matrix access token to an attacker-controlled server. This occurs when the victim...

CVE-2026-42553 Cinny: Access token disclosure via invalidated emoji pack avatar URL in service worker

Cinny is a Matrix client. Prior to 4.10.3, A remote authenticated attacker who shares a room with a victim and has permissions to create room emotes for example in a DM can cause the victim's client to send their Matrix access token to an attacker-controlled server. This occurs when the victim...

CVE-2026-42553 Cinny: Access token disclosure via invalidated emoji pack avatar URL in service worker

Cinny is a Matrix client. Prior to 4.10.3, A remote authenticated attacker who shares a room with a victim and has permissions to create room emotes for example in a DM can cause the victim's client to send their Matrix access token to an attacker-controlled server. This occurs when the victim...

CVE-2026-42553

Cinny (Matrix client) before version 4.10.3 is affected by a token-disclosure vulnerability in two parts: (1) EmojiBoard fallback uses an untrusted pack.meta.avatar as a MXC URL, enabling an attacker-controlled HTTP(S) URL in a malicious emote pack; (2) the service worker attaches the user’s Auth...

EUVD-2026-32612

Cinny is a Matrix client. Prior to 4.10.3, A remote authenticated attacker who shares a room with a victim and has permissions to create room emotes for example in a DM can cause the victim's client to send their Matrix access token to an attacker-controlled server. This occurs when the victim...

CVE-2026-42553: Improper Input Validation

Cinny is a Matrix client. Prior to 4.10.3, A remote authenticated attacker who shares a room with a victim and has permissions to create room emotes for example in a DM can cause the victim's client to send their Matrix access token to an attacker-controlled server. This occurs when the victim...

Cinny input validation error vulnerability

Cinny is a simple and secure instant messaging client developed by Cinny OpenSource. Versions of Cinny prior to 4.10.3 contained a vulnerability related to input validation errors. This vulnerability arose due to EmojiBoard using an untrusted pack.meta.avatar as a URL without validation, and...

MAL-2026-4067 Malicious code in @antv/matrix-util (npm)

Part of the Mini Shai-Hulud supply chain attack campaign in which a threat actor compromised the npm account atool and published 631 malicious versions across 314 npm packages in an automated 22-minute burst. Each malicious version injects a preinstall hook that executes a 498KB obfuscated Bun...