{"id":"CVE-2026-32918","aliases":["EUVD-2026-16999","GHSA-wcxr-59v9-rxr8"],"status":"published","title":"OpenClaw \u003c 2026.3.11 - Session Sandbox Escape via session_status Tool","description":"OpenClaw before 2026.3.11 contains a session sandbox escape vulnerability in the session_status tool that allows sandboxed subagents to access parent or sibling session state. Attackers can supply arbitrary sessionKey values to read or modify session data outside their sandbox scope, including persisted model overrides.","severity":{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00103,"percentile":0.00981,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-863"],"published":"2026-03-13T20:55:19Z","modified":"2026-10-28T02:30:49Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.3.11"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2026.3.8"},{"fixed":"2026.3.11"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.3.11"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-wcxr-59v9-rxr8","tags":["vendor-advisory","Vendor Advisory","advisory","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-session-sandbox-escape-via-session-status-tool","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/releases/tag/v2026.3.11","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32918","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-wcxr-59v9-rxr8"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32918.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-32918","title":"OpenClaw \u003c 2026.3.11 - Session Sandbox Escape via session_status Tool","description":"OpenClaw before 2026.3.11 contains a session sandbox escape vulnerability in the session_status tool that allows sandboxed subagents to access parent or sibling session state. Attackers can supply arbitrary sessionKey values to read or modify session data outside their sandbox scope, including persisted model overrides.","status":"published","published":"2026-03-29T12:44:21.433Z","modified":"2026-06-23T16:15:18.557Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical","assessor":"cna"},{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:19:57.47301Z"}],"euvd":[{"id":"EUVD-2026-16999","description":"OpenClaw before 2026.3.11 contains a session sandbox escape vulnerability in the session_status tool that allows sandboxed subagents to access parent or sibling session state. Attackers can supply arbitrary sessionKey values to read or modify session data outside their sandbox scope, including persisted model overrides.","status":"published","published":"2026-03-29T12:44:21Z","modified":"2026-06-23T16:15:18Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical"}],"updated_at":"2026-11-02T18:20:32.273921Z"}],"ghsa":[{"id":"GHSA-wcxr-59v9-rxr8","title":"`OpenClaw: session_status` let sandboxed subagents access parent or sibling session state","description":"### Summary\n\nThe built-in `session_status` tool did not enforce the intended session-visibility boundary. A sandboxed subagent could supply another session's `sessionKey` and inspect or modify state outside its own sandbox scope.\n\n### Impact\n\nThis allowed a sandboxed child session to read parent or sibling session data and, in affected releases, update the target session's persisted model override.\n\n### Affected versions\n\n`openclaw` `\u003c= 2026.3.8`\n\n### Patch\n\nFixed in `openclaw` `2026.3.11` and included in later releases such as `2026.3.12`. Session visibility checks now enforce the sandbox boundary before reading or mutating session state.","status":"published","published":"2026-03-13T20:55:19Z","modified":"2026-04-01T00:06:28Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:39:47.075804Z"}],"nvd":[{"id":"CVE-2026-32918","description":"OpenClaw before 2026.3.11 contains a session sandbox escape vulnerability in the session_status tool that allows sandboxed subagents to access parent or sibling session state. Attackers can supply arbitrary sessionKey values to read or modify session data outside their sandbox scope, including persisted model overrides.","status":"published","published":"2026-03-29T13:17:00.173Z","modified":"2026-06-17T10:36:33.387Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/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":"critical","assessor":"secondary"},{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:12:12.261218Z"}],"osv":[{"id":"CVE-2026-32918","title":"OpenClaw \u003c 2026.3.11 - Session Sandbox Escape via session_status Tool","description":"OpenClaw before 2026.3.11 contains a session sandbox escape vulnerability in the session_status tool that allows sandboxed subagents to access parent or sibling session state. Attackers can supply arbitrary sessionKey values to read or modify session data outside their sandbox scope, including persisted model overrides.","status":"published","published":"2026-03-29T12:44:21.433Z","modified":"2026-10-28T02:30:49.418644988Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:45:01.548715Z"},{"id":"GHSA-wcxr-59v9-rxr8","title":"`OpenClaw: session_status` let sandboxed subagents access parent or sibling session state","description":"### Summary\n\nThe built-in `session_status` tool did not enforce the intended session-visibility boundary. A sandboxed subagent could supply another session's `sessionKey` and inspect or modify state outside its own sandbox scope.\n\n### Impact\n\nThis allowed a sandboxed child session to read parent or sibling session data and, in affected releases, update the target session's persisted model override.\n\n### Affected versions\n\n`openclaw` `\u003c= 2026.3.8`\n\n### Patch\n\nFixed in `openclaw` `2026.3.11` and included in later releases such as `2026.3.12`. Session visibility checks now enforce the sandbox boundary before reading or mutating session state.","status":"published","published":"2026-03-13T20:55:19Z","modified":"2026-04-01T00:26:25.415308Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:46:58.401149Z"}]}}