26 matches found
CVE-2026-19621
Mattermost versions 11.10.x = 11.10.0, 11.7.x = 11.7.9, 11.9.x = 11.9.1, 11.8.x = 11.8.5 fail to strip action integration secrets from post payloads before broadcasting post-deletion web socket events and returning thread API responses, which allows an authenticated channel member to obtain...
CVE-2026-19621 Mattermost leaks interactive-message integration secrets to non-admin users via post-deletion events and thread reads
Mattermost versions 11.10.x = 11.10.0, 11.7.x = 11.7.9, 11.9.x = 11.9.1, 11.8.x = 11.8.5 fail to strip action integration secrets from post payloads before broadcasting post-deletion web socket events and returning thread API responses, which allows an authenticated channel member to obtain...
CVE-2026-19621
Mattermost versions 11.10.x <= 11.10.0, 11.7.x <= 11.7.9, 11.9.x <= 11.9.1, and 11.8.x
PT-2026-82035
Mattermost doesn't restrict role updated websocket event broadcasts to members of the affected team or channel in github.com/mattermost/mattermost-server...
CVE-2026-16544
AWX security issue: the websocket event consumer omits RBAC checks for inventory_update_events, project_update_events, and system_job_events, allowing any authenticated user to subscribe to these unmapped groups and view real-time stdout from jobs in other organizations. Affected component is the...
Information Exposure
Overview github.com/mattermost/mattermost/server/channels/app is a private-cloud Slack alternative Affected versions of this package are vulnerable to Information Exposure via the roleupdated websocket event broadcast process. An attacker can gain unauthorized access to permission scheme change...
CVE-2026-2578
Mattermost (version 11.3.x, affected range up to 11.3.0) has a vulnerability where the redacted state of burn-on-read posts is not preserved during deletion. This allows channel members to access unrevealed burn-on-read message contents via the WebSocket post deletion event. CVSS v3.1 base score ...
CVE-2026-2578 Information Disclosure via WebSocket Event When Deleting Unrevealed Burn on Read Posts
Mattermost versions 11.3.x = 11.3.0 fail to preserve the redacted state of burn-on-read posts during deletion which allows channel members to access unrevealed burn-on-read message contents via the WebSocket post deletion event.. Mattermost Advisory ID: MMSA-2026-00579...
CVE-2026-2578 Information Disclosure via WebSocket Event When Deleting Unrevealed Burn on Read Posts
Mattermost versions 11.3.x = 11.3.0 fail to preserve the redacted state of burn-on-read posts during deletion which allows channel members to access unrevealed burn-on-read message contents via the WebSocket post deletion event.. Mattermost Advisory ID: MMSA-2026-00579...
EUVD-2019-11384
Malware in sbrugna...
EUVD-2023-33787
Malicious code in bioql PyPI...
CVE-2020-14457
An issue was discovered in Mattermost Server before 5.20.0. Non-members can receive broadcasted team details via the updateteam WebSocket event, aka MMSA-2020-0012...
BIT-MATTERMOST-2020-14457
An issue was discovered in Mattermost Server before 5.20.0. Non-members can receive broadcasted team details via the updateteam WebSocket event, aka MMSA-2020-0012...
BIT-MATTERMOST-2023-2281
When archiving a team, Mattermost fails to sanitize the related Websocket event sent to currently connected clients. This allows the clients to see the name, display name, description, and other data about the archived team...
Information Disclosure
github.com/mattermost/mattermost-server is vulnerable to Information Disclosure. The vulnerability exists because the library fails to sanitize the related WebSocket event sent to currently connected clients, which allows an attacker to see the name, display name, description, and other data when...
CVE-2023-2281
When archiving a team, Mattermost fails to sanitize the related Websocket event sent to currently connected clients. This allows the clients to see the name, display name, description, and other data about the archived team...
Sql injection
When archiving a team, Mattermost fails to sanitize the related Websocket event sent to currently connected clients. This allows the clients to see the name, display name, description, and other data about the archived team...
CVE-2023-2281: Exposure of Sensitive Information to an Unauthorized Actor
When archiving a team, Mattermost fails to sanitize the related Websocket event sent to currently connected clients. This allows the clients to see the name, display name, description, and other data about the archived team...