CVE-2026-100404 Zulip: Guests can read new messages in non-subscribed public channels

Zulip is an open-source team collaboration tool. In Zulip Server versions through 12.1, guest users can receive new message events for public channels outside their subscriptions. A guest can trigger the issue by registering an event queue with parameters that request messages from an unsubscribe...

CVE-2026-108730

The Raven application (versions 2.0.0 through 3.0.0 ) contains a missing authorization vulnerability within legacy methods located in raven/api/raven_message.py. The root cause is that these methods skip the required workspace membership check. Consequently, authenticated non-members can exploit ...

PT-2026-110133

Name of the Vulnerable Software and Affected Versions Raven versions 2.0.0 through 3.0.0 Description Missing authorization in legacy methods within raven/api/raven message.py allows authenticated non-members to bypass workspace membership checks. By using predictable channel IDs, an attacker can...

EUVD-2026-70391

WWBN AVideo fails to properly validate access controls on the public channel page, allowing unauthenticated visitors to view unlisted and group-restricted videos through hardcoded visibility flags and an undefined property. Attackers can access the channel endpoint to retrieve sensitive video...

CVE-2026-85156: Exposure of Sensitive Information to an Unauthorized Actor

WWBN AVideo fails to properly validate access controls on the public channel page, allowing unauthenticated visitors to view unlisted and group-restricted videos through hardcoded visibility flags and an undefined property. Attackers can access the channel endpoint to retrieve sensitive video...

CVE-2026-48076 OpenReception's bootstrap booking flow allows unauthenticated booking on isPublic=false channels

OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. The new-client booking flow in versions 1.0.1 and prior consists of three calls: bootstrap-challenge returns a 16-bit PoW challenge with difficulty=4 leading hex zeroes, bootstrap-verify...

CVE-2026-48076 OpenReception's bootstrap booking flow allows unauthenticated booking on isPublic=false channels

OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. The new-client booking flow in versions 1.0.1 and prior consists of three calls: bootstrap-challenge returns a 16-bit PoW challenge with difficulty=4 leading hex zeroes, bootstrap-verify...

EUVD-2026-36582

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, chat events for public category channels are published to MessageBus without permission scoping, so any MessageBus...

Practical Quantum Teleportation with Finite-Energy Codebooks

Quantum communication exploits non-classical correlations to achieve efficient and unconditionally secure exchange of information. In particular, the quantum teleportation protocol allows for a deterministic and secure transfer of unknown quantum states by using pre-shared quantum entanglement an...

EUVD-2022-34671

Malicious code in bioql PyPI...

EUVD-2025-28135

Malicious code in bioql PyPI...

PT-2025-31649

Name of the Vulnerable Software and Affected Versions Cursor versions prior to 1.3.9 Description Cursor, an AI-powered code editor, had a flaw that allowed writing files in the workspace without user approval in versions prior to 1.3.9. If a sensitive MCP file, such as .cursor/mcp.json, did not...

Mattermost Improper Access Control Vulnerability

Mattermost is an open source collaboration platform from Mattermost, Inc. in the United States. Mattermost suffers from an Improper Access Control vulnerability that stems from a failure to properly access control, which can be exploited by an attacker to view metadata about members of a public...

Improper Access Control

github.com/mattermost/mattermost-server is vulnerable to improper access control. The vulnerability is due to insufficient enforcement of access restrictions, which allows guest users to access metadata about members of public channels via the channel members API endpoint...

Mattermost fails to properly enforce access controls for guest users

Mattermost versions 10.7.x = 10.7.0, 10.5.x = 10.5.3, 9.11.x = 9.11.12 fail to properly enforce access controls for guest users accessing channel member information, allowing authenticated guest users to view metadata about members of public channels via the channel members API endpoint...

CVE-2025-1792 Improper Access Control in Mattermost Channel Member API

Mattermost versions 10.7.x = 10.7.0, 10.5.x = 10.5.3, 9.11.x = 9.11.12 fail to properly enforce access controls for guest users accessing channel member information, allowing authenticated guest users to view metadata about members of public channels via the channel members API endpoint...

Mattermost 安全漏洞

Mattermost is an open source collaboration platform from Mattermost, Inc. in the United States. Mattermost suffers from an Improper Access Control vulnerability that stems from a failure to properly access control, which can be exploited by an attacker to view metadata about members of a public...

Mattermost 安全漏洞

Mattermost is an open source collaboration platform from Mattermost, Inc. in the United States. A security vulnerability exists in Mattermost that stems from an unenforced channel switching restriction that allows a member with privileges to switch a public channel to a private channel or a priva...

CVE-2024-34152 Playbook Run Metadata leak to Guest

Mattermost versions 9.5.x = 9.5.3, 9.6.x = 9.6.1 and 8.1.x = 8.1.12 fail to perform proper access control which allows a guest to get the metadata of a public playbook run that linked to the channel they are guest via sending an RHSRuns GraphQL query request to the server...

CVE-2024-1887

Mattermost fails to check if compliance export is enabled when fetching posts of public channels allowing a user that is not a member of the public channel to fetch the posts, which will not be audited in the compliance export...