# CVE-2020-11805: Missing authorization in n/a

> Attackers can bypass UDP access controls in the Pexip Reverse Proxy and TURN Server, potentially gaining unauthorized network access.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Sep 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-8vvq-v9pr-9fqv

## What is CVE-2020-11805?

CVE-2020-11805 is a critical missing authorization vulnerability in Pexip Pexip Infinity, published on 25 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Pexip Reverse Proxy and TURN Server before 6.1.0 has Incorrect UDP Access Control via TURN.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2020-11805?

It affects 2 products.


Products: Pexip Pexip Infinity, Pexip Reverse Proxy and Turn Server.

## How do I fix CVE-2020-11805?

No fix has been published for CVE-2020-11805 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-11805 being exploited?

There is no known exploitation of CVE-2020-11805 in the wild and no public exploit code.

## Other vulnerabilities in Pexip Pexip Infinity

- [CVE-2026-103110](https://insights.sbomify.com/CVE-2026-103110/): Memory corruption in Infinity (critical 9.8)
- [CVE-2015-4719](https://insights.sbomify.com/CVE-2015-4719/): Privilege escalation in n/a (critical 9.8)
- [CVE-2017-6551](https://insights.sbomify.com/CVE-2017-6551/): Other in n/a (critical 9.8)
- [CVE-2026-103105](https://insights.sbomify.com/CVE-2026-103105/): Missing authorization in Infinity (high 8.8)
- [CVE-2026-103101](https://insights.sbomify.com/CVE-2026-103101/): Pexip Infinity 30.0 through 40.x before 41.0 is affected by improper input validation in the web server that allows a malicious attacker to (high 8.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-11805 and fix it if it is affected.

What it is: CVE-2020-11805 is a critical missing authorization vulnerability in Pexip Pexip Infinity, published on 25 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-11805 in the wild and no public exploit code.

Affected product: Pexip Pexip Infinity. 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-2020-11805/ (Markdown: https://insights.sbomify.com/CVE-2020-11805/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-11805
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-11805
- OSV: https://osv.dev/vulnerability/CVE-2020-11805

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-11805/
Summaries are generated and may contain mistakes; the official description above is the record.