CVE-2026-3473

CVE-2026-3473 affects Mattermost prior to fixed versions: 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, and 10.11.x

CVE-2026-3473 Improper file ownership validation in the Boards API allows unauthorised file access

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate file ownership and access control, which allows an authenticated user to access and download files belonging to other users or teams via crafted Boards API requests using valid file IDs...

CVE-2026-3473 Improper file ownership validation in the Boards API allows unauthorised file access

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate file ownership and access control, which allows an authenticated user to access and download files belonging to other users or teams via crafted Boards API requests using valid file IDs...

CVE-2026-3473

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate file ownership and access control, which allows an authenticated user to access and download files belonging to other users or teams via crafted Boards API requests using valid file IDs...

CVE-2026-3473 Improper file ownership validation in the Boards API allows unauthorised file access

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate file ownership and access control, which allows an authenticated user to access and download files belonging to other users or teams via crafted Boards API requests using valid file IDs...

Mattermost 安全漏洞

Mattermost is an open-source collaboration platform developed by the American company Mattermost. Vulnerabilities exist in versions of Mattermost 11.6.0 and earlier 11.6.x series, as well as versions prior to 11.5.3 11.5.x series, 11.4.4 and earlier 11.4.x series, and 10.11.14 and earlier 10.11.x...

PT-2026-42745

Name of the Vulnerable Software and Affected Versions Mattermost version 11.6.0 Mattermost version 11.5.3 Mattermost version 11.4.4 Mattermost version 10.11.14 Description Improper validation of file ownership and access control in the Boards API allows an authenticated user to access and downloa...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: Boards: The issue of NULL pointer dereferencing in BYT/CHT boards has been fixed. Since commit 13f58267cda3 “ASoC: soc.h: Do not create dummy components via COMPDUMMY”, dummy codecs were declared as follows:...

EUVD-2026-25613

4ga Boards is a boards system for realtime project management. Prior to 3.3.5, a path traversal vulnerability allows an authenticated user with board import privileges to make the server ingest arbitrary host files as board attachments during BOARDS archive import. Once imported, the file can be...

CVE-2026-41419 4ga Boards: Import Path Traversal Leads to Arbitrary File Read

4ga Boards is a boards system for realtime project management. Prior to 3.3.5, a path traversal vulnerability allows an authenticated user with board import privileges to make the server ingest arbitrary host files as board attachments during BOARDS archive import. Once imported, the file can be...

CVE-2026-41419

4ga Boards is a boards system for realtime project management. Prior to 3.3.5, a path traversal vulnerability allows an authenticated user with board import privileges to make the server ingest arbitrary host files as board attachments during BOARDS archive import. Once imported, the file can be...

CVE-2026-41419 4ga Boards: Import Path Traversal Leads to Arbitrary File Read

4ga Boards is a boards system for realtime project management. Prior to 3.3.5, a path traversal vulnerability allows an authenticated user with board import privileges to make the server ingest arbitrary host files as board attachments during BOARDS archive import. Once imported, the file can be...

CVE-2026-41419 4ga Boards: Import Path Traversal Leads to Arbitrary File Read

4ga Boards is a boards system for realtime project management. Prior to 3.3.5, a path traversal vulnerability allows an authenticated user with board import privileges to make the server ingest arbitrary host files as board attachments during BOARDS archive import. Once imported, the file can be...

CVE-2026-41418

4ga Boards is a boards system for realtime project management. Prior to 3.3.5, 4ga Boards is vulnerable to user enumeration via a timing side-channel in the login endpoint POST /api/access-tokens. When an invalid username/email is provided, the server responds immediately 17ms average. When a val...

CVE-2026-41418 4ga Boards: User Enumeration via Timing Side-Channel in Authentication Endpoint

4ga Boards is a boards system for realtime project management. Prior to 3.3.5, 4ga Boards is vulnerable to user enumeration via a timing side-channel in the login endpoint POST /api/access-tokens. When an invalid username/email is provided, the server responds immediately 17ms average. When a val...

CVE-2026-41418

4ga Boards prior to 3.3.5 is vulnerable to user enumeration via a timing side-channel on POST /api/access-tokens. Valid username/email with wrong password yields ~74 ms bcrypt.compareSync(), vs ~17 ms for invalid username/email, creating a ~4.4× timing difference. Root cause: timing variance in l...

EUVD-2026-25612

4ga Boards is a boards system for realtime project management. Prior to 3.3.5, 4ga Boards is vulnerable to user enumeration via a timing side-channel in the login endpoint POST /api/access-tokens. When an invalid username/email is provided, the server responds immediately 17ms average. When a val...

4ga Boards 安全漏洞

4ga Boards is a real-time project management dashboard system developed by RAR Personal Developers. Versions of 4ga Boards prior to 3.3.5 contained security vulnerabilities. These vulnerabilities stemmed from timing side channels in the login endpoint, which could lead to user enumeration...

PT-2026-35064

Name of the Vulnerable Software and Affected Versions 4ga Boards versions prior to 3.3.5 Description A path traversal issue allows an authenticated user with board import privileges to force the server to ingest arbitrary host files as board attachments during the BOARDS archive import process...

PT-2026-35063

Name of the Vulnerable Software and Affected Versions 4ga Boards versions prior to 3.3.5 Description 4ga Boards is a boards system for realtime project management. The software allows user enumeration through a timing side-channel in the login endpoint '/api/access-tokens'. The server responds...