CVE-2026-88002 Open WebUI: Any authenticated user can hang the server via a cyclic chat message history

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.5.0 until 0.11.1, the message-chain reconstruction helper in backend/openwebui/utils/misc.py advanced through a chat history by map key but tracked visited entries using each message body's optional id...

CVE-2026-88002 Open WebUI: Any authenticated user can hang the server via a cyclic chat message history

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.5.0 until 0.11.1, the message-chain reconstruction helper in backend/openwebui/utils/misc.py advanced through a chat history by map key but tracked visited entries using each message body's optional id...

CVE-2026-88000 Open WebUI: Any authenticated user can hang the server via message deletion in a cyclic chat tree

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, DELETE /api/v1/chats/id/messages/messageid used the chat-history deletion helper in backend/openwebui/models/chats.py to follow childrenIds without recording visited message identifiers...

CVE-2026-88000 Open WebUI: Any authenticated user can hang the server via message deletion in a cyclic chat tree

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, DELETE /api/v1/chats/id/messages/messageid used the chat-history deletion helper in backend/openwebui/models/chats.py to follow childrenIds without recording visited message identifiers...

CVE-2026-88000

Open WebUI (a self-hosted AI platform) versions 0.10.0 through 0.11.1 contain a denial-of-service vulnerability in the DELETE /api/v1/chats/{id}/messages/{message_id} endpoint. The chat-history deletion helper follows childrenIds without tracking visited message identifiers, so an authenticated u...

CVE-2026-88000 Open WebUI: Any authenticated user can hang the server via message deletion in a cyclic chat tree

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, DELETE /api/v1/chats/id/messages/messageid used the chat-history deletion helper in backend/openwebui/models/chats.py to follow childrenIds without recording visited message identifiers...

CVE-2026-87994 Open WebUI: Channel members can overwrite another member's message via the chat completions endpoint

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 until 0.11.1, the channel branch of chatcompletion in backend/openwebui/main.py checked channel write access and channel membership for a supplied messageid but did not verify that the calling user...

CVE-2026-87994

Open WebUI versions 0.9.5 through 0.11.1 are affected by an authorization flaw in the channel branch of chat_completion in backend/open_webui/main.py. The endpoint verified channel write access and membership for a supplied message_id but failed to confirm that the calling user was the original a...

CVE-2026-87994 Open WebUI: Channel members can overwrite another member's message via the chat completions endpoint

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 until 0.11.1, the channel branch of chatcompletion in backend/openwebui/main.py checked channel write access and channel membership for a supplied messageid but did not verify that the calling user...

CVE-2026-87994 Open WebUI: Channel members can overwrite another member's message via the chat completions endpoint

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 until 0.11.1, the channel branch of chatcompletion in backend/openwebui/main.py checked channel write access and channel membership for a supplied messageid but did not verify that the calling user...

CVE-2026-57159

A flaw was found in PJSIP. An out-of-bounds read and write can occur in the SDP negotiator when the remote payload-type map maintenance feature is enabled. A remote attacker can trigger this via payload-type numbers taken from a remote SDP offer or answer, which are used as an index to access...

Vulnerabilities found in various SAP products

SAP has identified vulnerabilities in the SAP Extended Passport Protocol EPP processing library, SAP NetWeaver Message Server, the @sap/cds-mtxs NPM library, SAP GUI for Java, SAP ABAP Development Tools for SAP NetWeaver AS ABAP, SAP Integration Suite, SAP NetWeaver Business Client, SAP Web...

Improper Preservation Of Message Metadata

Spring Integration is vulnerable to improper preservation of message metadata. The vulnerability is due to reply and propagated headers being copied from the most recently consumed upstream message when .fluxTransform processes raw payloads asynchronously or out of order, which allows an attacker...

CVE-2026-54048 Apache Impala: Avro Schema URL Server-Side Request Forgery

Specifying tblproperties'avro.schema.url'=' http://...' or with a 'file:///' URI on a table in Impala 2.0.0 to 4.5.1 on all platforms allows an attacker to trigger a GET request to internal endpoints they may not have access to but that Impala does and the response my be exposed via parsing error...

Vulnerabilities in Microsoft Windows

Microsoft has identified 666 vulnerabilities in Windows. Malicious actors can exploit these vulnerabilities to carry out attacks that can cause various types of damage, as listed in the table below. Microsoft has identified 666 vulnerabilities in Windows. The 32 most severe vulnerabilities are...

Improper Handling Of Untrusted Message Headers

Spring Integration is vulnerable to improper handling of untrusted message headers. The vulnerability is due to the EmbeddedHeadersJsonMessageMapper deserializing embedded JSON headers into a Map and creating message headers without sanitizing or filtering untrusted header names by default, which...

CVE-2026-80440 Hustle < 7.8.14.2 - Unauthenticated Arbitrary Shortcode Execution via Success Message Placeholders

The Hustle WordPress plugin before 7.8.14.2 does not prevent shortcodes in submitted form values from being executed when it substitutes those values into the message it returns after submission, because the guard it applies can be defeated by nesting, allowing unauthenticated users to run any...

CVE-2026-80440 Hustle < 7.8.14.2 - Unauthenticated Arbitrary Shortcode Execution via Success Message Placeholders

The Hustle WordPress plugin before 7.8.14.2 does not prevent shortcodes in submitted form values from being executed when it substitutes those values into the message it returns after submission, because the guard it applies can be defeated by nesting, allowing unauthenticated users to run any...

CVE-2026-18042

The WP Travel WordPress plugin before 12.0.2 does not verify that the requester is authorized to act on the booking targeted by one of its front-end payment-message handlers, allowing unauthenticated attackers to cancel the payment on any customer's booking...

CVE-2026-18042

The WP Travel WordPress plugin, in versions prior to 12.0.2 , contains a vulnerability where it fails to verify if a requester is authorized to perform actions on a specific booking. This flaw exists within one of the plugin's front-end payment-message handlers . Consequently, an unauthenticated ...