{"affected":[{"defaultStatus":"unaffected","ecosystem":"golang","packageName":"github.com/asternic/wuzapi","product":"wuzapi","source":"CNA: VulnCheck","vendor":"asternic","versions":[{"lessThanOrEqual":"1.1.0","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-126807","cwes":["CWE-639"],"description":"WuzAPI through 1.1.0 contains a cross-tenant information disclosure vulnerability in the GetHistory handler that allows authenticated users to view other tenants' chat metadata. Attackers with message history enabled can request GET /chat/history with chat_jid=index to list every user's internal ID, stored chat JIDs, and last-message times.","epss":{"date":"2026-11-12","percentile":0.21247,"score":0.00285},"exploits":[],"kev":null,"metrics":[{"score":5.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},{"score":4.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},{"score":5.3,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/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"},{"score":4.3,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}],"modifiedAt":1794506119137,"publishedAt":1794430389618,"references":[{"source":"CNA: VulnCheck","tags":["issue-tracking"],"url":"https://github.com/asternic/wuzapi/issues/407"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/asternic/wuzapi/commit/f5332fa21b7c8a742f9ee565328ea776ad0c8040"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/asternic/wuzapi/blob/v1.1.0/handlers.go#L7269-L7296"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/asternic/wuzapi/blob/v1.1.0/routes.go#L139"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://hackmd.io/@hieund/wuzapi-chat-history-index-cross-tenant-idor"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/wuzapi-through-1.1.0-cross-tenant-information-disclosure-via-chat-history"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/asternic/wuzapi/blob/v1.1.0/handlers.go#L7269-L7296"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/asternic/wuzapi/blob/v1.1.0/routes.go#L139"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/asternic/wuzapi/commit/f5332fa21b7c8a742f9ee565328ea776ad0c8040"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/asternic/wuzapi/issues/407"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://hackmd.io/@hieund/wuzapi-chat-history-index-cross-tenant-idor"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/wuzapi-through-1.1.0-cross-tenant-information-disclosure-via-chat-history"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/asternic/wuzapi/commit/f5332fa21b7c8a742f9ee565328ea776ad0c8040"}],"revision":"fdb1d3be10a24ce0f2005bc06552d7928a7d048cacc59234c2e686e4a73ca0b1","sources":[{"modifiedAt":1794506119137,"name":"CNA: VulnCheck","retrievedAt":1794507027188,"url":"https://www.cve.org/CVERecord?id=CVE-2026-126807"},{"modifiedAt":1794431804800,"name":"NVD","retrievedAt":1794443546497,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126807"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794507042237,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-126807"}],"ssvc":{"assessedAt":1794500845999,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"WuzAPI through 1.1.0 Cross-Tenant Information Disclosure via /chat/history","updatedAt":1794507042237}