{"schema":"threatline.record/2","record":{"id":"CVE-2026-100556","aliases":["GHSA-mm7m-wcgh-8mfq"],"summary":"OpenClaw before 2026.8.1 Authentication Bypass via Session Reset","details":"OpenClaw (npm package openclaw) versions >= 2026.5.2 and < 2026.8.1 contain an incorrect authorization vulnerability in WhatsApp group handling. A group sender who is admitted for ordinary messages but denied by commands.allowFrom or owner command authorization can issue the /new <model> command to reset the shared group session and persist a provider and model override. This allows a command-denied group member to select a provider and model already permitted by the operator for subsequent turns in the shared group session, potentially changing provider routing, cost, data flow, or availability. It does not allow adding a new provider or host command execution. The issue is fixed in version 2026.8.1.","categories":["Unclassified"],"product":"OpenClaw","vendor":"OpenClaw","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100556","source_modified_at":"2026-09-30T00:23:16.050Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"OpenClaw","vendor":"OpenClaw","versions":[{"version":"2026.5.2","status":"affected","versionType":"semver","lessThan":"2026.8.1"},{"version":"2026.8.1","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100556","source_modified_at":"2026-09-30T00:23:16.050Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"OpenClaw","ecosystem":null},"version":"2026.8.1","basis":"first unaffected version stated in the CVE record"}],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00278,"percentile":0.19224,"score_date":"2026-10-23"},"published_at":"2026-09-26T02:18:50.427Z","modified_at":"2026-09-30T00:23:16.050Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-100556","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-30T00:23:16.050Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-100556","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-mm7m-wcgh-8mfq","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-authentication-bypass-via-session-reset","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-30T00:23:05.228024Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-30T00:23:16.050Z","content_hash":"0fc8f9db7bb3e7fc923fdb5169d260c6c75ef98c2c5834cd2dd87d4720cccf7f"}}