artemis-server: Apache Artemis — session hijack via missing authentication

in Apache Artemis, the REATTACHSESSION handler performs zero authentication — it looks up the session by name only and calls transferConnection unconditionally, migrating the authenticated session to the attacker's connection. The hijacked cluster-bridge session inherits full broker-management...

artemis-server: artemis-server: Pre-auth topology disclosure via CORE SUBSCRIBE_TOPOLOGY_V2 on channel0

A missing authentication vulnerability was found in Apache ActiveMQ Artemis. The SUBSCRIBETOPOLOGYV2 handler in CoreProtocolManager.LocalChannelHandler.handlePacket processes topology subscription requests on channel0 with zero authentication -- no call to getSecurityStore, no credential...

CVE-2026-81906 [UNREVIEWED] OAuth Callback Login Bypasses Deactivated-Account Checks

Concrete CMS OAuth callback login path prior to version 9.5.3 did not check whether an account was active or email-validated before establishing a session. A deactivated or unvalidated user with an existing OAuth binding could complete authentication and receive a session that was fully...

CVE-2026-81906 [UNREVIEWED] OAuth Callback Login Bypasses Deactivated-Account Checks

Concrete CMS OAuth callback login path prior to version 9.5.3 did not check whether an account was active or email-validated before establishing a session. A deactivated or unvalidated user with an existing OAuth binding could complete authentication and receive a session that was fully...

CVE-2026-81906 [UNREVIEWED] OAuth Callback Login Bypasses Deactivated-Account Checks

Concrete CMS OAuth callback login path prior to version 9.5.3 did not check whether an account was active or email-validated before establishing a session. A deactivated or unvalidated user with an existing OAuth binding could complete authentication and receive a session that was fully...

CVE-2026-81906

Concrete CMS prior to version 9.5.3 is affected by an OAuth callback login flaw. The vulnerable component is the OAuth callback login path , which failed to verify whether an account was active or email-validated before establishing a session. As a result, a deactivated or unvalidated user with a...

GHSA-WVM9-9G5J-623F Open WebUI: Users denied by the OAuth role policy can still sign in via token exchange

Summary Open WebUI's OAuth token exchange endpoint issues a session for a provider access token without running the OAuth role management that the normal OAuth login callback runs. A user whose provider roles the login callback would refuse, or would demote, could still obtain a working session a...

GHSA-C476-6W5Q-JW77 rclone: FTP cross-session auth-proxy backend confusion

Summary The FTP auth-proxy driver stores one obscured password per username in a server-wide map. It does not bind the credential or returned VFS to the authenticated FTP session. If two accepted credentials use the same username but resolve to different proxy backends, the later login overwrites...

EUVD-2026-75173

Open WebUI: Admin demoted through SSO role sync keeps read and write access to all users' notes...

Open WebUI: Admin demoted through SSO role sync keeps read and write access to all users' notes

Summary A user who is demoted from admin by an identity provider keeps admin-level read and write access to every user's notes, over any Socket.IO connection that was already open when the demotion happened. Open WebUI caches the user's role on the socket at connection time, and the two SSO...

GHSA-WJWR-XFP9-R66P Open WebUI: Admin demoted through SSO role sync keeps read and write access to all users' notes

Summary A user who is demoted from admin by an identity provider keeps admin-level read and write access to every user's notes, over any Socket.IO connection that was already open when the demotion happened. Open WebUI caches the user's role on the socket at connection time, and the two SSO...

CVE-2026-81268

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute flows and obtain sensitive information due to insufficient session expiration of API keys after user deactivation...

CVE-2026-36392

FairSketch Rise CRM Version 3.9.6 is vulnerable to Cross Site Scripting XSS. An authenticated administrator can inject arbitrary JavaScript into an item's title, which is stored server-side and executed in the browser of any client user who visits the store page, enabling session hijacking, accou...

CVE-2026-49837

GoBGP (open source BGP implementation in Go) versions prior to 4.6.0 contain a boundary validation flaw in the BGP OPEN capability parser. Several capability decoders read from the full remaining buffer instead of the slice bounded by the declared CapLen , allowing a malformed OPEN message to cau...

CVE-2026-81268 Langflow is vulnerable to authentication bypass and insufficient session expiration

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute flows and obtain sensitive information due to insufficient session expiration of API keys after user deactivation...

CVE-2026-81268 Langflow is vulnerable to authentication bypass and insufficient session expiration

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute flows and obtain sensitive information due to insufficient session expiration of API keys after user deactivation...

CVE-2026-81268

IBM Langflow OSS 1.0.0–1.11.5 is vulnerable to authentication bypass and insufficient session expiration due to two distinct flaws. First, MCP HTTP API credential resolvers fail to apply the AUTO_LOGIN API-key guard that standard endpoints enforce, causing unauthenticated requests to MCP endpoint...

Open WebUI: A user's session cookies are sent to tool servers configured for bearer authentication

Summary When more than one external tool server is reachable in the same request, a tool call to a server configured for bearer authentication can arrive carrying the calling user's Open WebUI session cookies alongside that server's own key. The cookie jar is built per connection, but the callabl...

EUVD-2026-75174

Open WebUI: A user's session cookies are sent to tool servers configured for bearer authentication...

GHSA-P78M-89R6-PGF7 Open WebUI: A user's session cookies are sent to tool servers configured for bearer authentication

Summary When more than one external tool server is reachable in the same request, a tool call to a server configured for bearer authentication can arrive carrying the calling user's Open WebUI session cookies alongside that server's own key. The cookie jar is built per connection, but the callabl...