CVE-2026-42396 Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail

Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail...

PT-2026-42449

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description Insufficient validation of member zone data may cause the catalog zone transfer to fail. Recommendations At the moment, there is no information about a newer...

PT-2026-42618

Summary Shared-base sessions were granted the same base-member capabilities as authenticated viewers. Using only the shared-base UUID xc-shared-base-id, an attacker could enumerate base members and invite an arbitrary email into the base as a real member. The invited user could then redeem the...

PT-2026-42678

Name of the Vulnerable Software and Affected Versions NocoDB affected versions not specified Description An authorization bypass occurs because shared-base sessions are granted the same capabilities as authenticated viewers. By using the shared-base UUID xc-shared-base-id, an attacker can enumera...

CVE-2026-40102 Plane: ORM Field Reference Injection via `segment` Parameter in Saved Analytics

Plane is an open-source project management tool. In versions 1.3.0 and below, SavedAnalyticEndpoint passes the user-controlled segment query parameter directly to a Django F expression without validation unlike the regular AnalyticsEndpoint, which checks against an allowlist, causing ORM Field...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: tracing/probes: The error check in parsebtffield has been fixed. btffindstructmember may return NULL or an error via the ERRPTR macro. However, its caller in parsebtffield only checks for the NULL condition. This issue is fixed b...

Astra Linux – Vulnerability in protobuf-c, libsignal-protocol-c

Protobuf-c before version 1.4.1 has an unsigned integer overflow in the parserequiredmember field...

PT-2026-42269

Plane is an open-source project management tool. In versions 1.3.0 and below, SavedAnalyticEndpoint passes the user-controlled segment query parameter directly to a Django F expression without validation unlike the regular AnalyticsEndpoint, which checks against an allowlist, causing ORM Field...

GHSA-XVCX-MGPC-5XH3 Mattermost doesn't validate the X-Requested-With header on the burn-on-read reveal endpoint

Mattermost versions 11.5.x = 11.5.1, 11.4.x = 11.4.3 fail to validate the X-Requested-With header on the burn-on-read reveal endpoint which allows an authenticated channel member to force the reveal of a burn-on-read message without recipient consent via a crafted Markdown image tag.. Mattermost...

CVE-2026-6339

Mattermost versions 11.5.x = 11.5.1, 11.4.x = 11.4.3 fail to validate the X-Requested-With header on the burn-on-read reveal endpoint which allows an authenticated channel member to force the reveal of a burn-on-read message without recipient consent via a crafted Markdown image tag.. Mattermost...

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 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:...

EUVD-2026-30749

Mattermost versions 11.5.x = 11.5.1, 11.4.x = 11.4.3 fail to validate the X-Requested-With header on the burn-on-read reveal endpoint which allows an authenticated channel member to force the reveal of a burn-on-read message without recipient consent via a crafted Markdown image tag.. Mattermost...

CVE-2026-6339

Mattermost contains a vulnerability (CVE-2026-6339) in versions 11.5.x <= 11.5.1 and 11.4.x

CVE-2026-6339 Missing request origin validation on burn-on-read reveal endpoint

Mattermost versions 11.5.x = 11.5.1, 11.4.x = 11.4.3 fail to validate the X-Requested-With header on the burn-on-read reveal endpoint which allows an authenticated channel member to force the reveal of a burn-on-read message without recipient consent via a crafted Markdown image tag.. Mattermost...

PT-2026-41657

Name of the Vulnerable Software and Affected Versions Mattermost versions 11.4.x through 11.4.3 Mattermost versions 11.5.x through 11.5.1 Description An issue exists where the burn-on-read reveal endpoint fails to validate the 'X-Requested-With' header. This allows an authenticated channel member...

CVE-2026-45385 Open WebUI: An IDOR vulnerability exists in the update_message_by_id API endpoint

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, an IDOR vulnerability exists in the Channels feature of Open WebUI, allowing any channel member to modify messages sent by other members including administrators within the same...

CVE-2026-44559

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the GET /api/v1/channels/id/members endpoint only checks membership for group and dm channel types lines 467-469. For standard channels — including private ones — there is no...

CVE-2026-44559

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the GET /api/v1/channels/id/members endpoint only checks membership for group and dm channel types lines 467-469. For standard channels — including private ones — there is no...

CVE-2026-44559

Summary (CVE-2026-44559) Open WebUI’s channel membership endpoint has an access control flaw on standard channels. Prior to version 0.9.0, GET /api/v1/channels/{id}/members only enforced membership checks for channel types ‘group’ and ‘dm’; standard (including private) channels did not perform ch...