CVE-2026-59714 Open WebUI: Cross-channel message overwrite via chat completion API (single-model and multimodel message_ids)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 before 0.10.0, any authenticated user can overwrite the content of a message in a channel they do not belong to including private and DM channels by sending a chat completion request with a...

CVE-2026-59714 Open WebUI: Cross-channel message overwrite via chat completion API (single-model and multimodel message_ids)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 before 0.10.0, any authenticated user can overwrite the content of a message in a channel they do not belong to including private and DM channels by sending a chat completion request with a...

CVE-2026-59714

CVE-2026-59714 describes a cross-channel message overwrite vulnerability in Open WebUI exposed by the chat-completions path. From v0.9.5 to before v0.10.0, an authenticated user could overwrite a message in a channel they do not belong to by using a channel: chat_id with a caller-supplied message...

CVE-2026-69114

Spacebar Server before commit 8d126f4 contains a cross-channel message deletion vulnerability in the single-delete and bulk-delete message handlers that fail to scope message queries to the requested channel. Authenticated users with MANAGEMESSAGES permission in any controlled channel can delete...

CVE-2026-69114

CVE-2026-69114 affects Spacebar Server prior to commit 8d126f4. The cross-channel message deletion vulnerability resides in the single-delete and bulk-delete handlers, which fail to scope message queries to the requested channel. This allows authenticated users with MANAGE_MESSAGES in any control...

CVE-2026-69114

Spacebar Server before commit 8d126f4 contains a cross-channel message deletion vulnerability in the single-delete and bulk-delete message handlers that fail to scope message queries to the requested channel. Authenticated users with MANAGEMESSAGES permission in any controlled channel can delete...

CVE-2026-69114 Spacebar Server Cross-Channel Message Deletion via Permission Check Bypass

Spacebar Server before commit 8d126f4 contains a cross-channel message deletion vulnerability in the single-delete and bulk-delete message handlers that fail to scope message queries to the requested channel. Authenticated users with MANAGEMESSAGES permission in any controlled channel can delete...

CVE-2026-69114 Spacebar Server Cross-Channel Message Deletion via Permission Check Bypass

Spacebar Server before commit 8d126f4 contains a cross-channel message deletion vulnerability in the single-delete and bulk-delete message handlers that fail to scope message queries to the requested channel. Authenticated users with MANAGEMESSAGES permission in any controlled channel can delete...

CVE-2026-67347

Vendure through 3.7.1, fixed in commit f67ef5f, contains a cross-channel authorization bypass vulnerability in stock-location.service.ts and asset.service.ts update methods that allows channel-scoped administrators to modify other tenants' data. Attackers can supply global IDs of StockLocation or...

CVE-2026-67347 Vendure 3.7.1 Cross-Channel Authorization Bypass via StockLocation and Asset Update

Vendure through 3.7.1, fixed in commit f67ef5f, contains a cross-channel authorization bypass vulnerability in stock-location.service.ts and asset.service.ts update methods that allows channel-scoped administrators to modify other tenants' data. Attackers can supply global IDs of StockLocation or...

CVE-2026-67347 Vendure 3.7.1 Cross-Channel Authorization Bypass via StockLocation and Asset Update

Vendure through 3.7.1, fixed in commit f67ef5f, contains a cross-channel authorization bypass vulnerability in stock-location.service.ts and asset.service.ts update methods that allows channel-scoped administrators to modify other tenants' data. Attackers can supply global IDs of StockLocation or...

CVE-2026-67347

Vendure 3.7.1 contains a cross-channel authorization bypass. In stock-location.service.ts and asset.service.ts update methods, channel-scoped administrators can supply global IDs from different channels to overwrite inventory locations or catalog assets belonging to other tenants, bypassing chann...

CVE-2026-67347 Vendure 3.7.1 Cross-Channel Authorization Bypass via StockLocation and Asset Update

Vendure through 3.7.1, fixed in commit f67ef5f, contains a cross-channel authorization bypass vulnerability in stock-location.service.ts and asset.service.ts update methods that allows channel-scoped administrators to modify other tenants' data. Attackers can supply global IDs of StockLocation or...

EUVD-2026-51150

Vendure through 3.7.1, fixed in commit f67ef5f, contains a cross-channel authorization bypass vulnerability in stock-location.service.ts and asset.service.ts update methods that allows channel-scoped administrators to modify other tenants' data. Attackers can supply global IDs of StockLocation or...

CVE-2026-67347

Vendure through 3.7.1, fixed in commit f67ef5f, contains a cross-channel authorization bypass vulnerability in stock-location.service.ts and asset.service.ts update methods that allows channel-scoped administrators to modify other tenants' data. Attackers can supply global IDs of StockLocation or...

GHSA-73X5-H92W-XC2J Open WebUI: Private channel messages can be disclosed through cross-channel thread parent_id binding

Summary A normal authenticated user can read the content of a message in a private channel they do not belong to. GET /api/v1/channels/id/messages/messageid/thread authorizes the caller against the URL channel, but the underlying thread lookup loads the thread parent by id and returns it without...

EUVD-2026-42630

Open WebUI: Private channel messages can be disclosed through cross-channel thread parentid binding...

GHSA-X2FF-V5V8-M75M Open WebUI: Cross-channel message overwrite via chat completion API (single-model and multimodel message_ids)

Summary Any authenticated user can overwrite the content of a message in a channel they do not belong to including private and DM channels by sending a chat completion request with a channel:-prefixed chatid and a target messageid. The channel: path routes pipeline output through...

CVE-2026-59215

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, channel thread parent and reply handling did not bind parentid to the channel in the URL, allowing an authenticated user to reference a message from another private or DM channel and disclose...

CVE-2026-59215

Open WebUI prior to 0.10.0 contains a cross-channel thread context exposure bug: channel thread parent_id binding did not bind to the URL, allowing an authenticated user to reference a message from another private or DM channel and disclose thread context across channels. The issue is fixed in ve...