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No-Instructions vulnerabilities

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Published CVEs affecting No-Instructions products: 1 record(s), with severity, exploitation and fixes.

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CVE-2026-42889 Critical · 9.1 CWE-639 May 12, 2026
Relay Server Authentication Bypass in WebSocket Endpoints (CVE-2026-42889)
Relay adds real-time collaboration to Obsidian. Relay Server versions 0.9.0 through 0.9.6 contain an authentication bypass in the multi-document WebSocket endpoints. When authentication is configured, WebSocket connections without a token query parameter were incorrectly treated as having full server permissions. An unauthenticated network attacker who knows or guesses a document ID could connect to the document sync WebSocket and read or modify document contents without a valid document token. This vulnerability is fixed in 0.9.7.