{"id":"CVE-2026-28477","aliases":["EUVD-2026-9923","GHSA-7rcp-mxpq-72pj"],"status":"published","title":"OpenClaw \u003c 2026.2.14 - OAuth State Validation Bypass in Manual Chutes Login Flow","description":"OpenClaw versions prior to 2026.2.14 contain an oauth state validation bypass vulnerability in the manual Chutes login flow that allows attackers to bypass CSRF protection. An attacker can convince a user to paste attacker-controlled OAuth callback data, enabling credential substitution and token persistence for unauthorized accounts.","severity":{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","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-352"],"published":"2026-02-18T17:41:00Z","modified":"2026-10-28T02:31:00Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.2.14"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2026.2.14"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.2.14"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-7rcp-mxpq-72pj","tags":["vendor-advisory","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/a99ad11a4107ba8eac58f54a3c1a8a0cf5686f47","tags":["patch","Patch","fix","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-oauth-state-validation-bypass-in-manual-chutes-login-flow","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/releases/tag/v2026.2.14","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-28477","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7rcp-mxpq-72pj"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28477.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-28477","title":"OpenClaw \u003c 2026.2.14 - OAuth State Validation Bypass in Manual Chutes Login Flow","description":"OpenClaw versions prior to 2026.2.14 contain an oauth state validation bypass vulnerability in the manual Chutes login flow that allows attackers to bypass CSRF protection. An attacker can convince a user to paste attacker-controlled OAuth callback data, enabling credential substitution and token persistence for unauthorized accounts.","status":"published","published":"2026-03-05T21:59:52.893Z","modified":"2026-03-09T18:11:21.42Z","cvss":[{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:20:02.290587Z"}],"euvd":[{"id":"EUVD-2026-9923","description":"OpenClaw versions prior to 2026.2.14 contain an oauth state validation bypass vulnerability in the manual Chutes login flow that allows attackers to bypass CSRF protection. An attacker can convince a user to paste attacker-controlled OAuth callback data, enabling credential substitution and token persistence for unauthorized accounts.","status":"published","published":"2026-03-05T21:59:52Z","modified":"2026-03-09T18:11:21Z","cvss":[{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:48:06.581696Z"}],"ghsa":[{"id":"GHSA-7rcp-mxpq-72pj","title":"OpenClaw Chutes manual OAuth state validation bypass can cause credential substitution","description":"## Summary\n\nThe manual Chutes OAuth login flow could accept attacker-controlled callback input in a way that bypassed OAuth CSRF state validation, potentially resulting in credential substitution.\n\n## Impact\n\nIf an attacker can convince a user to paste attacker-provided OAuth callback data during the manual login prompt, OpenClaw may exchange an attacker-obtained authorization code and persist tokens for the wrong Chutes account.\n\nThe automatic local callback flow is not affected (it validates state in the local HTTP callback handler).\n\n## Affected Packages / Versions\n\n- `openclaw` (npm): `\u003c= 2026.2.13` when using the manual Chutes OAuth login flow.\n\n## Fix\n\nThe manual flow now requires the full redirect URL (must include `code` and `state`), validates the returned `state` against the expected value, and rejects code-only pastes.\n\n## Fix Commit(s)\n\n- a99ad11a4107ba8eac58f54a3c1a8a0cf5686f47\n\nThanks @aether-ai-agent for reporting.","status":"published","published":"2026-02-18T17:41:00Z","modified":"2026-03-06T01:04:50Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:39:32.329372Z"}],"nvd":[{"id":"CVE-2026-28477","description":"OpenClaw versions prior to 2026.2.14 contain an oauth state validation bypass vulnerability in the manual Chutes login flow that allows attackers to bypass CSRF protection. An attacker can convince a user to paste attacker-controlled OAuth callback data, enabling credential substitution and token persistence for unauthorized accounts.","status":"published","published":"2026-03-05T22:16:22.007Z","modified":"2026-06-17T10:28:43.17Z","cvss":[{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/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":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:12:07.852448Z"}],"osv":[{"id":"CVE-2026-28477","title":"OpenClaw \u003c 2026.2.14 - OAuth State Validation Bypass in Manual Chutes Login Flow","description":"OpenClaw versions prior to 2026.2.14 contain an oauth state validation bypass vulnerability in the manual Chutes login flow that allows attackers to bypass CSRF protection. An attacker can convince a user to paste attacker-controlled OAuth callback data, enabling credential substitution and token persistence for unauthorized accounts.","status":"published","published":"2026-03-05T21:59:52.893Z","modified":"2026-10-28T02:31:00.206967726Z","cvss":[{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:45:00.530889Z"},{"id":"GHSA-7rcp-mxpq-72pj","title":"OpenClaw Chutes manual OAuth state validation bypass can cause credential substitution","description":"## Summary\n\nThe manual Chutes OAuth login flow could accept attacker-controlled callback input in a way that bypassed OAuth CSRF state validation, potentially resulting in credential substitution.\n\n## Impact\n\nIf an attacker can convince a user to paste attacker-provided OAuth callback data during the manual login prompt, OpenClaw may exchange an attacker-obtained authorization code and persist tokens for the wrong Chutes account.\n\nThe automatic local callback flow is not affected (it validates state in the local HTTP callback handler).\n\n## Affected Packages / Versions\n\n- `openclaw` (npm): `\u003c= 2026.2.13` when using the manual Chutes OAuth login flow.\n\n## Fix\n\nThe manual flow now requires the full redirect URL (must include `code` and `state`), validates the returned `state` against the expected value, and rejects code-only pastes.\n\n## Fix Commit(s)\n\n- a99ad11a4107ba8eac58f54a3c1a8a0cf5686f47\n\nThanks @aether-ai-agent for reporting.","status":"published","published":"2026-02-18T17:41:00Z","modified":"2026-03-06T01:17:16.047122Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium"},{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:46:41.349637Z"}]}}