# CVE-2026-96655: Plex Media Server Server-Side Request Forgery (SSRF)

> An authenticated user can exploit an SSRF vulnerability in Plex Media Server to access arbitrary internal or external network addresses.

- **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`)
- **Exploited in the wild:** Yes, since 20 Oct 2026 (CISA KEV)
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Sep 2026
- **Updated:** 21 Oct 2026
- **Also known as:** GHSA-9x88-w2p7-56vh

## What is CVE-2026-96655?

CVE-2026-96655 is a medium-severity server-side request forgery vulnerability in Plex Media Server, published on 23 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Plex Media Server before 1.43.3.10861 allows an authenticated user to request arbitrary internal or external addresses via the '/video/:/transcode/universal' path parameter.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2026-96655?

It affects 1 product.


Products: Plex Media Server.

## How do I fix CVE-2026-96655?

No fix has been published for CVE-2026-96655 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 Nov 2026.

## Is CVE-2026-96655 being exploited?

Yes. Attackers have exploited CVE-2026-96655 in the wild since at least 20 Oct 2026.

## Other vulnerabilities in Plex Media Server

- [CVE-2026-96656](https://insights.sbomify.com/CVE-2026-96656/): Plex Media Server External Control of File Name or Path (high 8.6, exploited in the wild)
- [CVE-2020-5741](https://insights.sbomify.com/CVE-2020-5741/): Plex Media Server Remote Code Execution (high 7.2, exploited in the wild)
- [CVE-2026-96654](https://insights.sbomify.com/CVE-2026-96654/): Plex Media Server Improper Neutralization of Encoded URI Schemes in a Web Page (medium 6.9, exploited in the wild)
- [CVE-2026-96652](https://insights.sbomify.com/CVE-2026-96652/): Plex Media Server Server-Side Request Forgery (SSRF) (medium 5.3, exploited in the wild)
- [CVE-2018-13415](https://insights.sbomify.com/CVE-2018-13415/): XML external entity in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-96655 and fix it if it is affected.

What it is: CVE-2026-96655 is a medium-severity server-side request forgery vulnerability in Plex Media Server, published on 23 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2026-96655 in the wild since at least 20 Oct 2026.

Affected product: Plex Media Server. 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-2026-96655/ (Markdown: https://insights.sbomify.com/CVE-2026-96655/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-96655
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-96655
- OSV: https://osv.dev/vulnerability/CVE-2026-96655

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-96655/
Summaries are generated and may contain mistakes; the official description above is the record.