{"id":"CVE-2026-35635","aliases":["EUVD-2026-21126","GHSA-g8mc-c5f2-mqg7","GHSA-rqp8-q22p-5j9q"],"status":"published","title":"OpenClaw \u003c 2026.3.22 - Webhook Path Route Replacement Vulnerability in Synology Chat","description":"OpenClaw before 2026.3.22 contains a webhook path route replacement vulnerability in the Synology Chat extension that allows attackers to collapse multi-account configurations onto shared webhook paths. Attackers can exploit inherited or duplicate webhook paths to bypass per-account DM access control policies and replace route ownership across accounts.","severity":{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00255,"percentile":0.17199,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-285","CWE-706","CWE-863"],"published":"2026-03-26T21:45:35Z","modified":"2026-10-28T02:30:34Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.3.22"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2026.3.22"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.3.22"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-rqp8-q22p-5j9q","tags":["vendor-advisory","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87","tags":["patch","Patch","fix","web"]},{"url":"https://github.com/openclaw/openclaw/commit/980940aa58f862da4e19372597bbc2a9f268d70b","tags":["patch","Patch","fix","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-webhook-path-route-replacement-vulnerability-in-synology-chat","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35635","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-g8mc-c5f2-mqg7"},{"url":"https://github.com/advisories/GHSA-rqp8-q22p-5j9q"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35635.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-35635","title":"OpenClaw \u003c 2026.3.22 - Webhook Path Route Replacement Vulnerability in Synology Chat","description":"OpenClaw before 2026.3.22 contains a webhook path route replacement vulnerability in the Synology Chat extension that allows attackers to collapse multi-account configurations onto shared webhook paths. Attackers can exploit inherited or duplicate webhook paths to bypass per-account DM access control policies and replace route ownership across accounts.","status":"published","published":"2026-04-09T21:27:05.119Z","modified":"2026-06-23T16:15:56.459Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-706"],"updated_at":"2026-11-02T14:20:05.15083Z"}],"euvd":[{"id":"EUVD-2026-21126","description":"OpenClaw before 2026.3.22 contains a webhook path route replacement vulnerability in the Synology Chat extension that allows attackers to collapse multi-account configurations onto shared webhook paths. Attackers can exploit inherited or duplicate webhook paths to bypass per-account DM access control policies and replace route ownership across accounts.","status":"published","published":"2026-04-09T21:27:05Z","modified":"2026-06-23T16:15:56Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:20:31.896888Z"}],"ghsa":[{"id":"GHSA-g8mc-c5f2-mqg7","title":"Duplicate Advisory: OpenClaw Bypasses DM Policy Separation via Synology Chat Webhook Path Collision","description":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-rqp8-q22p-5j9q This link is maintained to preserve external references.\n\n### Original Description\nOpenClaw before 2026.3.22 contains a webhook path route replacement vulnerability in the Synology Chat extension that allows attackers to collapse multi-account configurations onto shared webhook paths. Attackers can exploit inherited or duplicate webhook paths to bypass per-account DM access control policies and replace route ownership across accounts.","status":"withdrawn","published":"2026-04-10T00:30:30Z","modified":"2026-04-10T20:19:53Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-706"],"updated_at":"2026-11-02T14:39:53.087746Z"},{"id":"GHSA-rqp8-q22p-5j9q","title":"OpenClaw Bypasses DM Policy Separation via Synology Chat Webhook Path Collision ","description":"## Summary\nSynology Chat multi-account configuration could collapse onto a shared webhook path, replacing route ownership and bypassing per-account DM policy separation.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected: \u003c 2026.3.22\n- Fixed: \u003e= 2026.3.22\n- Latest released tag checked: `v2026.3.23-2` (`630f1479c44f78484dfa21bb407cbe6f171dac87`)\n- Latest published npm version checked: `2026.3.23-2`\n\n## Fix Commit(s)\n- `980940aa58f862da4e19372597bbc2a9f268d70b`\n\n## Release Status\nThe fix shipped in `v2026.3.22` and remains present in `v2026.3.23` and `v2026.3.23-2`.\n\n## Code-Level Confirmation\n- extensions/synology-chat/src/accounts.ts now distinguishes inherited base webhook paths from explicit per-account paths.\n- extensions/synology-chat/src/gateway-runtime.ts now fails closed on inherited or duplicate webhook paths and registers routes without replacement.\n\nOpenClaw thanks @tdjackey for reporting.","status":"published","published":"2026-03-26T21:45:35Z","modified":"2026-04-10T20:19:59Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-285"],"updated_at":"2026-11-02T14:39:53.087746Z"}],"nvd":[{"id":"CVE-2026-35635","description":"OpenClaw before 2026.3.22 contains a webhook path route replacement vulnerability in the Synology Chat extension that allows attackers to collapse multi-account configurations onto shared webhook paths. Attackers can exploit inherited or duplicate webhook paths to bypass per-account DM access control policies and replace route ownership across accounts.","status":"published","published":"2026-04-09T22:16:32.567Z","modified":"2026-06-17T10:40:55.88Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-706","CWE-863"],"updated_at":"2026-11-02T14:12:13.902911Z"}],"osv":[{"id":"CVE-2026-35635","title":"OpenClaw \u003c 2026.3.22 - Webhook Path Route Replacement Vulnerability in Synology Chat","description":"OpenClaw before 2026.3.22 contains a webhook path route replacement vulnerability in the Synology Chat extension that allows attackers to collapse multi-account configurations onto shared webhook paths. Attackers can exploit inherited or duplicate webhook paths to bypass per-account DM access control policies and replace route ownership across accounts.","status":"published","published":"2026-04-09T21:27:05.119Z","modified":"2026-10-28T02:30:34.682250303Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-706"],"updated_at":"2026-11-02T15:45:02.673625Z"},{"id":"GHSA-g8mc-c5f2-mqg7","title":"Duplicate Advisory: OpenClaw Bypasses DM Policy Separation via Synology Chat Webhook Path Collision","description":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-rqp8-q22p-5j9q This link is maintained to preserve external references.\n\n### Original Description\nOpenClaw before 2026.3.22 contains a webhook path route replacement vulnerability in the Synology Chat extension that allows attackers to collapse multi-account configurations onto shared webhook paths. Attackers can exploit inherited or duplicate webhook paths to bypass per-account DM access control policies and replace route ownership across accounts.","status":"withdrawn","published":"2026-04-10T00:30:30Z","modified":"2026-04-10T20:33:53.842166Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"cwes":["CWE-706"],"updated_at":"2026-11-02T15:46:47.472172Z"},{"id":"GHSA-rqp8-q22p-5j9q","title":"OpenClaw Bypasses DM Policy Separation via Synology Chat Webhook Path Collision ","description":"## Summary\nSynology Chat multi-account configuration could collapse onto a shared webhook path, replacing route ownership and bypassing per-account DM policy separation.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected: \u003c 2026.3.22\n- Fixed: \u003e= 2026.3.22\n- Latest released tag checked: `v2026.3.23-2` (`630f1479c44f78484dfa21bb407cbe6f171dac87`)\n- Latest published npm version checked: `2026.3.23-2`\n\n## Fix Commit(s)\n- `980940aa58f862da4e19372597bbc2a9f268d70b`\n\n## Release Status\nThe fix shipped in `v2026.3.22` and remains present in `v2026.3.23` and `v2026.3.23-2`.\n\n## Code-Level Confirmation\n- extensions/synology-chat/src/accounts.ts now distinguishes inherited base webhook paths from explicit per-account paths.\n- extensions/synology-chat/src/gateway-runtime.ts now fails closed on inherited or duplicate webhook paths and registers routes without replacement.\n\nOpenClaw thanks @tdjackey for reporting.","status":"published","published":"2026-03-26T21:45:35Z","modified":"2026-04-10T20:42:17.703883Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-285"],"updated_at":"2026-11-02T15:46:56.281047Z"}]}}