Description
Wanwu before 0.6.3 contains an insecure direct object reference vulnerability that allows any authenticated enabled user to delete other users' legacy AppKeys by supplying a numeric apiId. Attackers can iterate sequential key IDs against DELETE /v1/appspace/app/key to revoke AppKeys across organizations, breaking MCP and OpenAPI clients until owners issue new keys.
References6
- github.com/UnicomAI/wanwu
- github.com/UnicomAI/wanwu/blob/v0.6.2/internal/app-service/clie…
- github.com/UnicomAI/wanwu/commit/13d0b225ec237d5a0b44730b2331ef…
- github.com/UnicomAI/wanwu/releases/tag/v0.6.3
- hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/unicomai-wanwu-appkey-delete-…
- www.vulncheck.com/advisories/wanwu-before-0.6.3-idor-appkey-del…
Metrics
- CVSS 3.1
-
5.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L - CVSS 4.0
-
5.3
MEDIUM
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/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 - EPSS — exploit probability
- 0% percentile: 14 · as of 11 November 2026
- CWE
- CWE-639
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.