{"schema_version":"1.9.0","id":"GHSA-vv3h-7qwr-722v","published":"2026-03-11T15:33:29Z","modified":"2026-03-24T21:16:25.446087Z","aliases":["CVE-2026-31863","GO-2026-4680"],"summary":"Anytype Heart's gRPC API client challenge verification can be bypassed on localhost","details":"#### Impact\nThe challenge-based authentication for the local gRPC client API can be bypassed, allowing an attacker to gain access without the 4-digit code.\n\nAffected components:\n- Anytype Desktop (all platforms) ≤ v0.48.2\n- Anytype-CLI (headless deployments) ≤ v0.1.9\n\nNot affected:\n- Anytype mobile apps (iOS, Android) - do not expose a local gRPC server\n\nWho is impacted:\nThis vulnerability is scoped to localhost. The gRPC and gRPC-Web ports bind to 127.0.0.1 only and are not exposed to the local network or internet.\n\n### Exploitation requires:\n- Local user-level access to the machine running Anytype\n- Discovery of the randomized listening port\n- A running Anytype instance\n\nAnytype-CLI headless deployments may be at higher risk only if an administrator has chosen to set up their own reverse proxy and configured it in a way that\nexposes gRPC or gRPC-Web ports to an external network. **By default, these ports are not externally accessible and there is no built-in mechanism to expose them.**\n\n#### Patches\n- anytype-heart library: v0.48.4\n- [Anytype Desktop](https://github.com/anyproto/anytype-ts): v0.54.5\n- [Anytype-CLI](https://github.com/anyproto/anytype-cli): v0.1.11\n\n#### Workarounds\n- Desktop users: No immediate action required. The vulnerability requires existing local access to the machine.\n- Anytype-CLI administrators: If using a custom reverse proxy, ensure it does not expose gRPC or gRPC-Web ports to external networks.","affected":[{"package":{"name":"github.com/anyproto/anytype-heart","ecosystem":"Go","purl":"pkg:golang/github.com/anyproto/anytype-heart"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.48.4"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-vv3h-7qwr-722v/GHSA-vv3h-7qwr-722v.json"}},{"package":{"name":"github.com/anyproto/anytype-cli","ecosystem":"Go","purl":"pkg:golang/github.com/anyproto/anytype-cli"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.1.11"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-vv3h-7qwr-722v/GHSA-vv3h-7qwr-722v.json"}}],"references":[{"type":"WEB","url":"https://github.com/anyproto/anytype-heart/security/advisories/GHSA-vv3h-7qwr-722v"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31863"},{"type":"WEB","url":"https://github.com/anyproto/anytype-cli"},{"type":"PACKAGE","url":"https://github.com/anyproto/anytype-heart"},{"type":"WEB","url":"https://github.com/anyproto/anytype-ts"},{"type":"WEB","url":"https://pkg.go.dev/vuln/GO-2026-4680"}],"database_specific":{"cwe_ids":["CWE-307"],"github_reviewed":true,"github_reviewed_at":"2026-03-11T15:33:29Z","nvd_published_at":"2026-03-11T18:16:25Z","severity":"LOW"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N"}]}