CVE-2026-3636 Sanitize team member data returned by API

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 sanitize team member data when returned via API to users without elevated permissions which allows a user without permissions to get data about team members roles via invoking various team API...

CVE-2026-3636 Sanitize team member data returned by API

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 sanitize team member data when returned via API to users without elevated permissions which allows a user without permissions to get data about team members roles via invoking various team API...

EUVD-2026-31428

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 sanitize team member data when returned via API to users without elevated permissions which allows a user without permissions to get data about team members roles via invoking various team API...

CVE-2026-3636 Sanitize team member data returned by API

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 sanitize team member data when returned via API to users without elevated permissions which allows a user without permissions to get data about team members roles via invoking various team API...

PT-2026-42746

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 Insufficient sanitization of team member data returned via API endpoints allows users without elevated permissions to obtain...

Unity Linux 20.1060e / 20.1070e Security Update: grafana (UTSA-2026-016665)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016665 advisory. Grafana is an open-source platform for monitoring and observability. Affected versions of Grafana expose multiple API endpoints which do not properly handle user...

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...

GHSA-6CFR-WP44-6QMV Mattermost has an Incorrect Authorization issue

Mattermost versions 11.5.x = 11.5.1 fail to validate team-level runcreate permission against the target team when creating a playbook run which allows an authenticated team member to create runs in teams where they lack permission via specifying a different team ID in the run creation API request...

CVE-2026-4055

Mattermost versions 11.5.x = 11.5.1 fail to validate team-level runcreate permission against the target team when creating a playbook run which allows an authenticated team member to create runs in teams where they lack permission via specifying a different team ID in the run creation API request...

CVE-2026-4055

Mattermost CVE-2026-4055 affects Mattermost versions 11.5.x

CVE-2026-4055 Insufficient permission validation on cross-team playbook run creation

Mattermost versions 11.5.x = 11.5.1 fail to validate team-level runcreate permission against the target team when creating a playbook run which allows an authenticated team member to create runs in teams where they lack permission via specifying a different team ID in the run creation API request...

CVE-2026-4055

Mattermost versions 11.5.x = 11.5.1 fail to validate team-level runcreate permission against the target team when creating a playbook run which allows an authenticated team member to create runs in teams where they lack permission via specifying a different team ID in the run creation API request...

CVE-2026-4055 Insufficient permission validation on cross-team playbook run creation

Mattermost versions 11.5.x = 11.5.1 fail to validate team-level runcreate permission against the target team when creating a playbook run which allows an authenticated team member to create runs in teams where they lack permission via specifying a different team ID in the run creation API request...

EUVD-2026-31221

Mattermost versions 11.5.x = 11.5.1 fail to validate team-level runcreate permission against the target team when creating a playbook run which allows an authenticated team member to create runs in teams where they lack permission via specifying a different team ID in the run creation API request...

CVE-2026-4055 Insufficient permission validation on cross-team playbook run creation

Mattermost versions 11.5.x = 11.5.1 fail to validate team-level runcreate permission against the target team when creating a playbook run which allows an authenticated team member to create runs in teams where they lack permission via specifying a different team ID in the run creation API request...

CVE-2026-45250

creationtimestamp| type| source ---|---|--- 2026-05-21 05:00:04+00:00| seen| https://t.me/GithubRedTeam/85149 2026-05-21 07:00:13+00:00| seen| Telegram/0oVkH4V3C9Cndp9LVxg4I8W2m2s-mbtiL-m94vGYIMA5C-Q 2026-05-21 09:00:04+00:00| seen| Telegram/vpOabQVvb76izlIWt2pzp7PU5zl-D7jeeGQcHuuxEyFlkWM...

PT-2026-42404

Name of the Vulnerable Software and Affected Versions Mattermost versions 11.5.x through 11.5.1 Description An incorrect authorization issue exists during the creation of a playbook run. The system fails to validate the team-level run create permission against the target team. This allows an...

Luban-2040-v2

🛡️ Luban 2040 v2 Advanced Reconnaissance & Vulnerability...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Team: Replace the team lock with rtnl lock. Syszbot reports various ordering issues related to lower instance locks and team locks. It is recommended to use rtnl locks for protecting team devices, similar to bonding. This chan...

Astra Linux – Vulnerability in Firefox

Mozilla developers Gabriele Svelto, Randell Jesup, and the Mozilla Fuzzing Team reported memory safety bugs in Firefox 99. Some of these bugs exhibited signs of memory corruption, and we assume that with sufficient effort, some of these bugs could have been exploited to execute arbitrary code. Th...