Vulnerability DatabaseCVE-2026-126807
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CVE-2026-126807
Published:November 11, 2026
Updated:November 14, 2026
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.
Related Resources (8)
https://github.com/asternic/wuzapi/commit/f5332fa21b7c8a742f9ee565328ea776ad0c8040
https://github.com/asternic/wuzapi/issues/407
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126807.json
https://github.com/asternic/wuzapi/blob/v1.1.0/handlers.go#L7269-L7296
https://hackmd.io/@hieund/wuzapi-chat-history-index-cross-tenant-idor
https://nvd.nist.gov/vuln/detail/CVE-2026-126807
https://www.vulncheck.com/advisories/wuzapi-through-1.1.0-cross-tenant-information-disclosure-via-chat-history
https://github.com/asternic/wuzapi/blob/v1.1.0/routes.go#L139
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Authorization Bypass Through User-Controlled Key
CWE-639
EPSS
Base Score:
0.29