{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-28454", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-02-27T19:17:24.607Z", "datePublished": "2026-03-05T21:59:31.848Z", "dateUpdated": "2026-03-05T22:27:57.081Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-03-05T22:27:57.081Z"}, "datePublic": "2026-02-14T00:00:00.000Z", "title": "OpenClaw < 2026.2.2 - Authorization Bypass via Unauthenticated Telegram Webhook", "descriptions": [{"lang": "en", "value": "OpenClaw versions prior to 2026.2.2 fail to validate webhook secrets in Telegram webhook mode (must be enabled), allowing unauthenticated HTTP POST requests to the webhook endpoint that trust attacker-controlled JSON payloads. Remote attackers can forge Telegram updates by spoofing message.from.id and chat.id fields to bypass sender allowlists and execute privileged bot commands."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Insufficient Verification of Data Authenticity", "cweId": "CWE-345", "type": "CWE"}]}], "affected": [{"defaultStatus": "unaffected", "product": "OpenClaw", "vendor": "OpenClaw", "versions": [{"version": "0", "lessThan": "2026.2.2", "status": "affected", "versionType": "custom"}], "packageURL": "pkg:npm/openclaw"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "2026.2.2"}]}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 8.2, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-fhvm-j76f-qmjv", "name": "GitHub Security Advisory (GHSA-fhvm-j76f-qmjv)", "tags": ["vendor-advisory"]}, {"url": "https://github.com/openclaw/openclaw/commit/ca92597e1f9593236ad86810b66633144b69314d", "name": "Patch Commit", "tags": ["patch"]}, {"url": "https://github.com/openclaw/openclaw/commit/5643a934799dc523ec2ef18c007e1aa2c386b670", "name": "Hardening Commit #1", "tags": ["patch"]}, {"url": "https://github.com/openclaw/openclaw/commit/3cbcba10cf30c2ffb898f0d8c7dfb929f15f8930", "name": "Hardening Commit #2", "tags": ["patch"]}, {"url": "https://github.com/openclaw/openclaw/commit/633fe8b9c17f02fcc68ecdb5ec212a5ace932f09", "name": "Hardening Commit #3", "tags": ["patch"]}, {"name": "VulnCheck Advisory: OpenClaw < 2026.2.2 - Authorization Bypass via Unauthenticated Telegram Webhook", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/openclaw-authorization-bypass-via-unauthenticated-telegram-webhook"}], "x_generator": {"engine": "vulncheck"}, "credits": [{"lang": "en", "value": "Petr Simecek (@simecek)", "type": "reporter"}, {"lang": "en", "value": "Stanislav Fort, Aisle Research, www.aisle.com", "type": "analyst"}]}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "OpenClaw versions prior to 2026.2.2 fail to validate webhook secrets in Telegram webhook mode (must be enabled), allowing unauthenticated HTTP POST requests to the webhook endpoint that trust attacker-controlled JSON payloads. Remote attackers can forge Telegram updates by spoofing message.from.id and chat.id fields to bypass sender allowlists and execute privileged bot commands."}], "id": "CVE-2026-28454", "lastModified": "2026-03-05T22:16:17.817", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "disclosure@vulncheck.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2026-03-05T22:16:17.817", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/openclaw/openclaw/commit/3cbcba10cf30c2ffb898f0d8c7dfb929f15f8930"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/openclaw/openclaw/commit/5643a934799dc523ec2ef18c007e1aa2c386b670"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/openclaw/openclaw/commit/633fe8b9c17f02fcc68ecdb5ec212a5ace932f09"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/openclaw/openclaw/commit/ca92597e1f9593236ad86810b66633144b69314d"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-fhvm-j76f-qmjv"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/openclaw-authorization-bypass-via-unauthenticated-telegram-webhook"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-345"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

{}

{}