{"id":"CVE-2026-28482","aliases":["EUVD-2026-9928","GHSA-5xfq-5mr7-426q"],"status":"published","title":"OpenClaw \u003c 2026.2.12 - Path Traversal via Unsanitized sessionId and sessionFile Parameters","description":"OpenClaw versions prior to 2026.2.12 construct transcript file paths using unsanitized sessionId parameters and sessionFile paths without enforcing directory containment. Authenticated attackers can exploit path traversal sequences like ../../etc/passwd in sessionId or sessionFile parameters to read or write arbitrary files outside the agent sessions directory.","severity":{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00158,"percentile":0.04986,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-22"],"published":"2026-02-18T00:57:30Z","modified":"2026-10-28T02:30:35Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.2.12"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2026.2.12"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.2.12"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-5xfq-5mr7-426q","tags":["vendor-advisory","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/4199f9889f0c307b77096a229b9e085b8d856c26","tags":["patch","Patch","fix","web"]},{"url":"https://github.com/openclaw/openclaw/commit/cab0abf52ac91e12ea7a0cf04fff315cf0c94d64","tags":["patch","Patch","fix","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-path-traversal-via-unsanitized-sessionid-and-sessionfile-parameters","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/releases/tag/v2026.2.12","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-28482","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-5xfq-5mr7-426q"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28482.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-28482","title":"OpenClaw \u003c 2026.2.12 - Path Traversal via Unsanitized sessionId and sessionFile Parameters","description":"OpenClaw versions prior to 2026.2.12 construct transcript file paths using unsanitized sessionId parameters and sessionFile paths without enforcing directory containment. Authenticated attackers can exploit path traversal sequences like ../../etc/passwd in sessionId or sessionFile parameters to read or write arbitrary files outside the agent sessions directory.","status":"published","published":"2026-03-05T21:59:57.256Z","modified":"2026-03-09T20:40:55.87Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:20:02.290587Z"}],"euvd":[{"id":"EUVD-2026-9928","description":"OpenClaw versions prior to 2026.2.12 construct transcript file paths using unsanitized sessionId parameters and sessionFile paths without enforcing directory containment. Authenticated attackers can exploit path traversal sequences like ../../etc/passwd in sessionId or sessionFile parameters to read or write arbitrary files outside the agent sessions directory.","status":"published","published":"2026-03-05T21:59:57Z","modified":"2026-03-09T20:40:55Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T19:48:06.014236Z"}],"ghsa":[{"id":"GHSA-5xfq-5mr7-426q","title":"OpenClaw's unsanitized session ID enables path traversal in transcript file operations","description":"## Description\n\nOpenClaw versions **\u003c= 2026.2.9** construct transcript file paths using an unsanitized `sessionId` and also accept `sessionFile` paths without enforcing that they stay within the agent sessions directory.\n\nA crafted `sessionId` and/or `sessionFile` (example: `../../etc/passwd`) can cause path traversal when the gateway performs transcript file read/write operations.\n\n**Preconditions:** an attacker must be able to authenticate to the gateway (gateway token/password). By default the gateway binds to `loopback` (local-only); configurations that expose the gateway widen the attack surface.\n\n## Affected Packages / Versions\n\n- Package: `openclaw` (npm)\n- Affected: `\u003c= 2026.2.9`\n- Fixed: `\u003e= 2026.2.12`\n\n## Fix\n\nFixed by validating session IDs (rejecting path separators / traversal sequences) and enforcing sessions-directory containment for session transcript file operations.\n\n### Fix Commit(s)\n\n- `4199f9889f0c307b77096a229b9e085b8d856c26`\n\n### Additional Hardening\n\n- `cab0abf52ac91e12ea7a0cf04fff315cf0c94d64`\n\n## Mitigation\n\nUpgrade to `openclaw \u003e= 2026.2.12`.\n\nThanks @akhmittra for reporting.","status":"published","published":"2026-02-18T00:57:30Z","modified":"2026-03-06T01:04:35Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"},{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:39:32.329372Z"}],"nvd":[{"id":"CVE-2026-28482","description":"OpenClaw versions prior to 2026.2.12 construct transcript file paths using unsanitized sessionId parameters and sessionFile paths without enforcing directory containment. Authenticated attackers can exploit path traversal sequences like ../../etc/passwd in sessionId or sessionFile parameters to read or write arbitrary files outside the agent sessions directory.","status":"published","published":"2026-03-05T22:16:23.013Z","modified":"2026-06-17T10:28:43.787Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/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":"high","assessor":"secondary"},{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:12:07.852448Z"}],"osv":[{"id":"CVE-2026-28482","title":"OpenClaw \u003c 2026.2.12 - Path Traversal via Unsanitized sessionId and sessionFile Parameters","description":"OpenClaw versions prior to 2026.2.12 construct transcript file paths using unsanitized sessionId parameters and sessionFile paths without enforcing directory containment. Authenticated attackers can exploit path traversal sequences like ../../etc/passwd in sessionId or sessionFile parameters to read or write arbitrary files outside the agent sessions directory.","status":"published","published":"2026-03-05T21:59:57.256Z","modified":"2026-10-28T02:30:35.481756865Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:45:00.530889Z"},{"id":"GHSA-5xfq-5mr7-426q","title":"OpenClaw's unsanitized session ID enables path traversal in transcript file operations","description":"## Description\n\nOpenClaw versions **\u003c= 2026.2.9** construct transcript file paths using an unsanitized `sessionId` and also accept `sessionFile` paths without enforcing that they stay within the agent sessions directory.\n\nA crafted `sessionId` and/or `sessionFile` (example: `../../etc/passwd`) can cause path traversal when the gateway performs transcript file read/write operations.\n\n**Preconditions:** an attacker must be able to authenticate to the gateway (gateway token/password). By default the gateway binds to `loopback` (local-only); configurations that expose the gateway widen the attack surface.\n\n## Affected Packages / Versions\n\n- Package: `openclaw` (npm)\n- Affected: `\u003c= 2026.2.9`\n- Fixed: `\u003e= 2026.2.12`\n\n## Fix\n\nFixed by validating session IDs (rejecting path separators / traversal sequences) and enforcing sessions-directory containment for session transcript file operations.\n\n### Fix Commit(s)\n\n- `4199f9889f0c307b77096a229b9e085b8d856c26`\n\n### Additional Hardening\n\n- `cab0abf52ac91e12ea7a0cf04fff315cf0c94d64`\n\n## Mitigation\n\nUpgrade to `openclaw \u003e= 2026.2.12`.\n\nThanks @akhmittra for reporting.","status":"published","published":"2026-02-18T00:57:30Z","modified":"2026-03-06T01:17:29.328225Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"},{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:46:38.911014Z"}]}}