{"id":"CVE-2026-35661","aliases":["EUVD-2026-21468","GHSA-j4c9-w69r-cw33"],"status":"published","title":"OpenClaw \u003c 2026.3.25 - Telegram DM-Scoped Inline Button Callback Authorization Bypass","description":"OpenClaw before 2026.3.25 contains an authorization bypass vulnerability in Telegram callback query handling that allows attackers to mutate session state without satisfying normal DM pairing requirements. Remote attackers can exploit weaker callback-only authorization in direct messages to bypass DM pairing and modify session state.","severity":{"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:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00296,"percentile":0.22574,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-285","CWE-288","CWE-863"],"published":"2026-03-29T15:50:23Z","modified":"2026-11-11T02:50:49Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.3.28"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2026.3.24"},{"fixed":"2026.3.28"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.3.28"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-j4c9-w69r-cw33","tags":["vendor-advisory","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/269282ac69ab6030d5f30d04822668f607f13065","tags":["patch","Patch","fix","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-telegram-dm-scoped-inline-button-callback-authorization-bypass","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35661","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-j4c9-w69r-cw33"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35661.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-35661","title":"OpenClaw \u003c 2026.3.25 - Telegram DM-Scoped Inline Button Callback Authorization Bypass","description":"OpenClaw before 2026.3.25 contains an authorization bypass vulnerability in Telegram callback query handling that allows attackers to mutate session state without satisfying normal DM pairing requirements. Remote attackers can exploit weaker callback-only authorization in direct messages to bypass DM pairing and modify session state.","status":"published","published":"2026-04-10T16:03:22.25Z","modified":"2026-06-23T16:16:15.659Z","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:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T14:20:05.15083Z"}],"euvd":[{"id":"EUVD-2026-21468","description":"OpenClaw before 2026.3.25 contains an authorization bypass vulnerability in Telegram callback query handling that allows attackers to mutate session state without satisfying normal DM pairing requirements. Remote attackers can exploit weaker callback-only authorization in direct messages to bypass DM pairing and modify session state.","status":"published","published":"2026-04-10T16:03:22Z","modified":"2026-06-23T16:16:15Z","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:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:20:31.896888Z"}],"ghsa":[{"id":"GHSA-j4c9-w69r-cw33","title":"OpenClaw: Telegram DM-Scoped Inline Button Callbacks Bypass DM Pairing and Mutate Session State","description":"## Summary\n\nTelegram DM-Scoped Inline Button Callbacks Bypass DM Pairing and Mutate Session State\n\n## Affected Packages / Versions\n\n- Package: `openclaw`\n- Affected versions: `\u003c= 2026.3.24`\n- First patched version: `2026.3.25`\n- Latest published npm version at verification time: `2026.3.24`\n\n## Details\n\nTelegram callback queries from direct messages previously used weaker callback-only authorization and could mutate session state without satisfying normal DM pairing. Commit `269282ac69ab6030d5f30d04822668f607f13065` enforces DM authorization for callbacks.\n\nVerified vulnerable on tag `v2026.3.24` and fixed on `main` by commit `269282ac69ab6030d5f30d04822668f607f13065`.\n\n## Fix Commit(s)\n\n- `269282ac69ab6030d5f30d04822668f607f13065`","status":"published","published":"2026-03-29T15:50:23Z","modified":"2026-04-10T19:43:56Z","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:N/SI:N/SA:N","level":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-285","CWE-288","CWE-863"],"updated_at":"2026-11-02T14:39:53.087746Z"}],"nvd":[{"id":"CVE-2026-35661","description":"OpenClaw before 2026.3.25 contains an authorization bypass vulnerability in Telegram callback query handling that allows attackers to mutate session state without satisfying normal DM pairing requirements. Remote attackers can exploit weaker callback-only authorization in direct messages to bypass DM pairing and modify session state.","status":"published","published":"2026-04-10T17:17:07.687Z","modified":"2026-06-17T10:40:59.16Z","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: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":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T14:12:14.37744Z"}],"osv":[{"id":"CVE-2026-35661","title":"OpenClaw \u003c 2026.3.25 - Telegram DM-Scoped Inline Button Callback Authorization Bypass","description":"OpenClaw before 2026.3.25 contains an authorization bypass vulnerability in Telegram callback query handling that allows attackers to mutate session state without satisfying normal DM pairing requirements. Remote attackers can exploit weaker callback-only authorization in direct messages to bypass DM pairing and modify session state.","status":"published","published":"2026-04-10T16:03:22.25Z","modified":"2026-11-11T10:30:36.452714798Z","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:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-288"],"updated_at":"2026-11-11T03:21:13.402158Z"},{"id":"GHSA-j4c9-w69r-cw33","title":"OpenClaw: Telegram DM-Scoped Inline Button Callbacks Bypass DM Pairing and Mutate Session State","description":"## Summary\n\nTelegram DM-Scoped Inline Button Callbacks Bypass DM Pairing and Mutate Session State\n\n## Affected Packages / Versions\n\n- Package: `openclaw`\n- Affected versions: `\u003c= 2026.3.24`\n- First patched version: `2026.3.25`\n- Latest published npm version at verification time: `2026.3.24`\n\n## Details\n\nTelegram callback queries from direct messages previously used weaker callback-only authorization and could mutate session state without satisfying normal DM pairing. Commit `269282ac69ab6030d5f30d04822668f607f13065` enforces DM authorization for callbacks.\n\nVerified vulnerable on tag `v2026.3.24` and fixed on `main` by commit `269282ac69ab6030d5f30d04822668f607f13065`.\n\n## Fix Commit(s)\n\n- `269282ac69ab6030d5f30d04822668f607f13065`","status":"published","published":"2026-03-29T15:50:23Z","modified":"2026-04-10T20:04:55.75728Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"},{"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:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-285","CWE-288","CWE-863"],"updated_at":"2026-11-02T15:46:49.977351Z"}]}}