Missing Authentication for Critical Function

Overview Affected versions of this package are vulnerable to Missing Authentication for Critical Function via the POST /webrtc/source-offer endpoint. An attacker can inject unauthorized audio or video streams by sending crafted WebRTC SDP offers to the endpoint without authentication, resulting i...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization in the git repository management endpoints, which lack proper role-based access control. An attacker can gain unauthorized access to sensitive Git credentials, modify or delete repository configurations, and...

SUSE CVE-2026-6637

Stack buffer overflow in PostgreSQL module "refint" allows an unprivileged database user to execute arbitrary code as the operating system user running the database. A distinct attack is possible if the application declares a user-controlled column as a "refint" cascade primary key and facilitate...

io.netty/netty-codec-http: Netty: Request smuggling via incorrect parsing of HTTP/1.1 chunked transfer encoding extension values

A flaw was found in Netty. A remote attacker could exploit this vulnerability by sending specially crafted HTTP/1.1 chunked transfer encoding extension values. Due to incorrect parsing of quoted strings, this flaw enables request smuggling attacks, potentially allowing an attacker to bypass...

io.netty/netty-codec-http: Netty: Request smuggling via incorrect parsing of HTTP/1.1 chunked transfer encoding extension values

A flaw was found in Netty. A remote attacker could exploit this vulnerability by sending specially crafted HTTP/1.1 chunked transfer encoding extension values. Due to incorrect parsing of quoted strings, this flaw enables request smuggling attacks, potentially allowing an attacker to bypass...

Insufficiently Protected Credentials

Overview Affected versions of this package are vulnerable to Insufficiently Protected Credentials via the Slack import process. An attacker can gain unauthorized access to user accounts by obtaining disclosed passwords and impersonating users. Remediation Upgrade...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization via the membership sync process. An attacker can remove users from any channel, including private channels, by sending crafted membership sync messages from a remote cluster that is not authorized to access the...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization via the group subscription process. An attacker can gain unauthorized access to groups that were not intended to be accessible by creating groups with prefixes matching those of whitelisted groups. Remediation A...

GHSA-M79Q-8QF5-V622 Mattermost doesn't check public/private permissions

Mattermost versions 11.5.x = 11.5.1, 10.11.x = 10.11.13, 11.4.x = 11.4.3 fail to check public/private permissions which allows members without these permissions to access public playbooks via /get.. Mattermost Advisory ID: MMSA-2026-00591...

Mattermost does not verify remote cluster channel access when processing shared channel membership removals

Mattermost versions 11.5.x = 11.5.1, 10.11.x = 10.11.13, 11.4.x = 11.4.3 fail to validate that a remote cluster has access to a channel before processing membership removal requests during shared channel membership sync, which allows a malicious remote cluster to remove any user from any channel,...

GHSA-8H9W-W78C-VVR3 Mattermost does not verify remote cluster channel access when processing shared channel membership removals

Mattermost versions 11.5.x = 11.5.1, 10.11.x = 10.11.13, 11.4.x = 11.4.3 fail to validate that a remote cluster has access to a channel before processing membership removal requests during shared channel membership sync, which allows a malicious remote cluster to remove any user from any channel,...

CVE-2026-6343

Mattermost versions 11.5.x = 11.5.1, 10.11.x = 10.11.13, 11.4.x = 11.4.3 fail to check public/private permissions which allows members without these permissions to access public playbooks via /get.. Mattermost Advisory ID: MMSA-2026-00591...

CVE-2026-6343 Mattermost Playbooks Plugin fails to enforce view permissions in list endpoints, allowing unauthorized access to public playbooks

Mattermost versions 11.5.x = 11.5.1, 10.11.x = 10.11.13, 11.4.x = 11.4.3 fail to check public/private permissions which allows members without these permissions to access public playbooks via /get.. Mattermost Advisory ID: MMSA-2026-00591...

CVE-2026-6343

Mattermost Playbooks plugin vulnerability CVE-2026-6343 affects Mattermost versions 11.5.x up to 11.5.1, 11.4.x up to 11.4.3, and 10.11.x up to 10.11.13. The issue is that public/private permissions are not checked, allowing members without required permissions to access public playbooks via endp...

CVE-2026-5163 Missing authorization check in AI message rewrite endpoint allows access to private thread content

Mattermost versions 11.5.x = 11.5.1 fail to verify channel membership when processing AI-assisted message rewrites which allows an authenticated attacker to read the content of threads in private channels and direct messages they do not have access to via a crafted request to the post rewrite...

CVE-2026-4286 Playbooks Plugin fails to validate team transfers, allowing unauthorized removal of member access via playbook update

Mattermost versions 11.5.x = 11.5.1, 10.11.x = 10.11.13 fail to check if teamid was being changed when updating playbooks, allowing users with only Manage Playbook Configurations permission to change a playbook's team, bypassing manage members restriction via PUT api. Mattermost Advisory ID:...

CVE-2026-4286

Mattermost Playbooks plugin vulnerability CVE-2026-4286 affects Mattermost versions 11.5.x <= 11.5.1 and 10.11.x

Security update for java-1_8_0-openjdk

This update for java-180-openjdk fixes the following issues CVE-2026-22007: APIs in the specified component can lead to an unauthorized read access bsc1262490. CVE-2026-22013: unauthenticated attacker with network access can access to critical data bsc1262494. CVE-2026-22016: APIs in the specifie...

BIT-GITLAB-2025-13874 Authorization Bypass Through User-Controlled Key in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.1 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user with Guest permissions to view issues in projects they were not authorized to access...

CVE-2026-1631

The Feeds for YouTube YouTube video, channel, and gallery plugin WordPress plugin before 2.6.4 is vulnerable to unauthorized modification of the Feeds for YouTube YouTube video, channel, and gallery plugin WordPress plugin before 2.6.4's license key due to a missing capability check on the...