# CVE-2026-53407: Missing authorization in Zoom Workplace

> An unauthenticated attacker can escalate privileges via network access due to improper authorization in the custom URL scheme handler.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A: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:** 12 Jun 2026
- **Updated:** 16 Jun 2026
- **Also known as:** GHSA-xm5c-4gf9-qf8c

## What is CVE-2026-53407?

CVE-2026-53407 is a high-severity missing authorization vulnerability in Zoom Workplace, published on 12 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Improper Authorization in Handler for Custom URL Scheme in Zoom Workplace before version 7.0.4 for Android and before 7.0.3 for iOS may allow an unauthenticated user to conduct an escalation of privilege via network access.

Weakness: CWE-939 (Improper Authorization in Handler for Custom URL Scheme)

## Which versions are affected by CVE-2026-53407?

It affects 1 product.


Products: Zoom Workplace.

## How do I fix CVE-2026-53407?

No fix has been published for CVE-2026-53407 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-53407 being exploited?

There is no known exploitation of CVE-2026-53407 in the wild and no public exploit code.

## Other vulnerabilities in Zoom Workplace

- [CVE-2026-30904](https://insights.sbomify.com/CVE-2026-30904/): Information disclosure in Zoom Workplace (low 1.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-53407 and fix it if it is affected.

What it is: CVE-2026-53407 is a high-severity missing authorization vulnerability in Zoom Workplace, published on 12 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-53407 in the wild and no public exploit code.

Affected product: Zoom Workplace. 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-2026-53407/ (Markdown: https://insights.sbomify.com/CVE-2026-53407/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-53407
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-53407
- OSV: https://osv.dev/vulnerability/CVE-2026-53407

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-53407/
Summaries are generated and may contain mistakes; the official description above is the record.