{"id":"CVE-2026-100556","revision":"4bdf007d2ecf4d9daafdb6b2a7203668","records":[{"revision":"4bdf007d2ecf4d9daafdb6b2a7203668","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-100556","aliases":[],"title":"OpenClaw before 2026.8.1 Authentication Bypass via Session Reset","description":"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.","state":0,"publishedAt":"2026-09-26T02:18:50.427+00:00","modifiedAt":"2026-09-30T00:23:16.05+00:00","affected":[{"ecosystem":"Vendor product","name":"OpenClaw","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"OpenClaw\",\n                    \"product\": \"OpenClaw\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/openclaw\",\n                    \"versions\": [\n                        {\n                            \"version\": \"2026.5.2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"2026.8.1\"\n                        },\n                        {\n                            \"version\": \"2026.8.1\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","score":5.3,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","score":6.3,"severity":"MEDIUM"}],"references":["https://github.com/openclaw/openclaw/security/advisories/GHSA-mm7m-wcgh-8mfq","https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-authentication-bypass-via-session-reset"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-100556","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-100556","identifiers":["CVE-2026-100556"]},"retained":false,"historicalAffected":[]}],"coverage":[]}