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 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

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

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 version 11.5.1 Description An issue exists where the system fails to validate the team-level run create permission against the target team during the creation of a playbook run. This allows an authenticated team member to create run...

Luban-2040-v2

🛡️ Luban 2040 v2 Advanced Reconnaissance & Vulnerability...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: team: fix null-ptr-deref when team device type is changed Get a null-ptr-deref bug as follows with reproducer 1. BUG: kernel NULL pointer dereference, address: 0000000000000228 ... RIP: 0010:vlandevhardheader+0x35/0x140 8021q...

Astra Linux – Vulnerabilities in Linux, Linux-5.15, Linux-5.10

In the Linux kernel, the following vulnerability has been resolved: Networks: Fixed a stack overflow issue when LRO is disabled for virtual interfaces. When the features of a virtual interface are updated, the updated features are synchronized with its underlying interfaces. This synchronization...

Astra Linux – Vulnerability in Thunderbird

Members of the Mozilla Fuzzing Team reported memory safety bugs in Firefox 103, Firefox ESR 102.1, and Firefox ESR 91.12. 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. Thi...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: team: prevent adding a device which is already a team device lower Prevent adding a device which is already a team device lower, e.g. adding veth0 if vlan1 was already added and veth0 is a lower of vlan1. This is not useful in...

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...

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 found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Team: Fix for checking whether the port is enabled in teamqueueoverrideportpriochanged. A syzkaller bug was recently reported with the following trace: listdel corruption; ffff888058bea080-prev is LISTPOISON2 dead000000000122...

Incorrect Authorization

Overview apache-airflow-providers-amazon is a Provider for Apache Airflow. Implements apache-airflow-providers-amazon package Affected versions of this package are vulnerable to Incorrect Authorization in the team-scoping logic. An attacker can access secrets belonging to other teams by crafting ...

GHSA-G9QC-QF28-HHQX Apache Airflow Amazon provider: Prevent unauthorized access to team-scoped secrets in AWS Secrets Manager and SSM Parameter Store backends

In the AWS Secrets Manager and SSM Parameter Store secrets backends of apache-airflow-providers-amazon prior to 9.28.0, the team-scoping logic could resolve a connid containing a / e.g. "myteam/conn" to the same path as another team's team-scoped secret when the caller had no team context. A...