{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100547","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-09-26T01:02:06.787Z","datePublished":"2026-09-26T02:18:43.254Z","dateUpdated":"2026-10-05T14:55:04.077Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-26T02:18:43.254Z"},"datePublic":"2026-09-11T00:00:00.000Z","title":"OpenClaw before 2026.8.1 Authentication Bypass via File URL","descriptions":[{"lang":"en","value":"OpenClaw is a coding agent distributed as the npm package `openclaw`. In affected versions (2026.7.1 through 2026.7.2), alternate but valid `file:` URL spellings supplied over the Agent Client Protocol (ACP) were treated as relative paths and were incorrectly classified as reads scoped to the session working directory. When an operator connected `openclaw acp client` to an untrusted or compromised ACP peer, that peer could request a read of a file outside the session working directory without the approval prompt normally required for that path, resulting in disclosure of local file contents. The demonstrated impact is limited to file confidentiality; mutating and command-capable tool classes are not affected. This issue is fixed in OpenClaw 2026.8.1."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Incorrect Behavior Order: Validate Before Canonicalize","cweId":"CWE-180","type":"CWE"}]}],"affected":[{"vendor":"OpenClaw","product":"OpenClaw","defaultStatus":"unaffected","packageURL":"pkg:npm/openclaw","versions":[{"version":"2026.7.1-2","status":"affected","versionType":"semver","lessThan":"2026.8.1"},{"version":"2026.8.1","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:*:*:*","versionStartIncluding":"2026.7.1-2","versionEndExcluding":"2026.8.1"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-356g-m7rx-7pm3","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-356g-m7rx-7pm3)"},{"name":"VulnCheck Advisory: OpenClaw before 2026.8.1 Authentication Bypass via File URL","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-authentication-bypass-via-file-url"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-100547","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-05T14:03:41.533011Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-05T14:55:04.077Z"}}]}}