# CVE-2026-16450: zsadmin2025 ZS-Admin MyBatis-Plus Tenant Plugin page getTenantId authorization

> Remote attackers can bypass authorization in ZS-Admin by manipulating the X-Tenant-Id header in the tenant plugin, potentially accessing unauthorized data.

- **Severity:** Medium 5.3 (`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:P`)
- **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:** 21 Jul 2026
- **Updated:** 23 Jul 2026
- **Also known as:** GHSA-xgfr-74fv-qv4q

## What is CVE-2026-16450?

CVE-2026-16450 is a medium-severity authentication bypass vulnerability in zsadmin2025 ZS-Admin, published on 21 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was identified in zsadmin2025 ZS-Admin up to b52e14536d59fda11e56e2536a1c32e82a38cead. This affects the function getTenantId of the file /api/system/sys/dept/page of the component MyBatis-Plus Tenant Plugin. Such manipulation of the argument X-Tenant-Id leads to authorization bypass. The attack may be performed from remote. The exploit is publicly available and might be used. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key), CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2026-16450?


## How do I fix CVE-2026-16450?

No fix has been published for CVE-2026-16450 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-16450 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16450 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-16450 and fix it if it is affected.

What it is: CVE-2026-16450 is a medium-severity authentication bypass vulnerability in zsadmin2025 ZS-Admin, published on 21 Jul 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-2026-16450 exists.

Affected product: zsadmin2025 ZS-Admin. 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-2026-16450/ (Markdown: https://insights.sbomify.com/CVE-2026-16450/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-16450
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-16450
- OSV: https://osv.dev/vulnerability/CVE-2026-16450

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-16450/
Summaries are generated and may contain mistakes; the official description above is the record.