# CVE-2026-108853: UnicomAI Wanwu before 0.6.3 IDOR via DELETE /v1/appspace/app

> Authenticated low-privileged users can delete other tenants' applications and data by manipulating the appId in DELETE requests.

- **Severity:** High 7.2 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Oct 2026
- **Updated:** 13 Oct 2026
- **Also known as:** GHSA-fg7x-9rxv-3m3p

## What is CVE-2026-108853?

CVE-2026-108853 is a high-severity missing authorization vulnerability in UnicomAI Wanwu, published on 11 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

UnicomAI Wanwu before 0.6.3 contains an insecure direct object reference vulnerability that allows authenticated low-privileged users to delete other tenants' agent or RAG applications by supplying their appId. Attackers can send requests to DELETE /v1/appspace/app with guessed sequential assistant IDs to permanently delete victims' applications, workflows, conversations, and associated data.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-108853?


## How do I fix CVE-2026-108853?

No fix has been published for CVE-2026-108853 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-108853 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108853 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-108853 and fix it if it is affected.

What it is: CVE-2026-108853 is a high-severity missing authorization vulnerability in UnicomAI Wanwu, published on 11 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108853 exists.

Affected product: UnicomAI Wanwu. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-108853/ (Markdown: https://insights.sbomify.com/CVE-2026-108853/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-108853
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-108853
- OSV: https://osv.dev/vulnerability/CVE-2026-108853

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-108853/
Summaries are generated and may contain mistakes; the official description above is the record.