{"id":"GHSA-gw85-xp4q-5gp9","summary":"OpenClaw's Synology Chat dmPolicy=allowlist failed open on empty allowedUserIds, allowing unauthorized agent dispatch","details":"### Summary\nIn `openclaw` versions `2026.2.22` and `2026.2.23`, the optional `synology-chat` channel plugin had an authorization fail-open condition: when `dmPolicy` was `allowlist` and `allowedUserIds` was empty/unset, unauthorized senders were still allowed through to agent dispatch.\n\nThis is assessed as **medium** severity because it requires channel/plugin setup and Synology sender access, but can still trigger downstream agent/tool actions.\n\n### Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected versions: `\u003e= 2026.2.22, \u003c= 2026.2.23`\n- Latest published affected version at patch time: `2026.2.23`\n- Planned patched version: `2026.2.24`\n\n### Details\nRoot cause was a policy mismatch across plugin code paths:\n1. Default resolved DM policy was `allowlist`.\n2. Empty `allowedUserIds` was treated as allow-all.\n3. Webhook auth in allowlist mode depended on that helper.\n\nResult: `allowlist` with empty list behaved like open access for inbound Synology senders.\n\n### Fix Commit(s)\n- `0ee30361b8f6ef3f110f3a7b001da6dd3df96bb5`\n- `7655c0cb3a47d0647cbbf5284e177f90b4b82ddb`\n\n### Release Process Note\n`patched_versions` is pre-set to the planned next release (`\u003e= 2026.2.24`). Once npm release `2026.2.24` is published, the advisory can be published directly.\n\nOpenClaw thanks @tdjackey for reporting.\n\n\n### Publication Update (2026-02-25)\n`openclaw@2026.2.24` is published on npm and contains the fix commit(s) listed above. This advisory now marks `\u003e= 2026.2.24` as patched.","aliases":["CVE-2026-31998"],"modified":"2026-03-20T21:56:22.212895Z","published":"2026-03-03T23:03:49Z","database_specific":{"cwe_ids":["CWE-284","CWE-863"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-03-03T23:03:49Z","nvd_published_at":null},"references":[{"type":"WEB","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-gw85-xp4q-5gp9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31998"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/commit/0ee30361b8f6ef3f110f3a7b001da6dd3df96bb5"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/commit/7655c0cb3a47d0647cbbf5284e177f90b4b82ddb"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/openclaw-authorization-bypass-in-synology-chat-plugin-via-empty-alloweduserids"}],"affected":[{"package":{"name":"openclaw","ecosystem":"npm","purl":"pkg:npm/openclaw"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2026.2.22"},{"fixed":"2026.2.24"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 2026.2.23","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-gw85-xp4q-5gp9/GHSA-gw85-xp4q-5gp9.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"}]}