# CVE-2020-8201: Other in Node

> Attackers can exploit HTTP desync in Node.js to hijack sessions, poison cookies, and perform clickjacking via malformed headers.

- **Severity:** High 7.4 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 18 Sep 2020
- **Updated:** 30 Apr 2025
- **Also known as:** ALPINE-CVE-2020-8201, BIT-node-2020-8201, BIT-node-min-2020-8201, CLEANSTART-2026-AZ08951, CLEANSTART-2026-EO67935, DEBIAN-CVE-2020-8201, GHSA-7mcp-gwc2-4c6m

## What is CVE-2020-8201?

CVE-2020-8201 is a high-severity vulnerability in Fedoraproject Fedora, published on 18 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Node.js < 12.18.4 and < 14.11 can be exploited to perform HTTP desync attacks and deliver malicious payloads to unsuspecting users. The payloads can be crafted by an attacker to hijack user sessions, poison cookies, perform clickjacking, and a multitude of other attacks depending on the architecture of the underlying system. The attack was possible due to a bug in processing of carrier-return symbols in the HTTP header names.

Weakness: CWE-444 (Inconsistent Interpretation of HTTP Requests)

## Which versions are affected by CVE-2020-8201?

2 open source packages ship an affected version, including node and node-min. It affects 3 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `node` | Bitnami | From 12.0.0 | 12.18.4, 14.11.0 |
| `node-min` | Bitnami | From 12.0.0 | 12.18.4, 14.11.0 |

Products: Fedoraproject Fedora, Nodejs Node.js, Opensuse Leap.

## How do I fix CVE-2020-8201?

Upgrade node to a fixed version for your release line: 12.18.4 or 14.11.0.

## Is CVE-2020-8201 being exploited?

There is no known exploitation of CVE-2020-8201 in the wild and no public exploit code.

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2024-4577](https://insights.sbomify.com/CVE-2024-4577/): PHP-CGI OS Command Injection (critical 9.8, exploited in the wild)
- [CVE-2021-39226](https://insights.sbomify.com/CVE-2021-39226/): Grafana Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2019-5544](https://insights.sbomify.com/CVE-2019-5544/): VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2024-4947](https://insights.sbomify.com/CVE-2024-4947/): Google Chromium V8 Type Confusion (critical 9.6, exploited in the wild)
- [CVE-2024-4671](https://insights.sbomify.com/CVE-2024-4671/): Google Chromium Visuals Use-After-Free (critical 9.6, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-8201 and fix it if it is affected.

What it is: CVE-2020-8201 is a high-severity vulnerability in Fedoraproject Fedora, published on 18 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-2020-8201 in the wild and no public exploit code.

Affected packages and fixed versions:
- node (Bitnami): affected from 12.0.0; fixed in 12.18.4, 14.11.0
- node-min (Bitnami): affected from 12.0.0; fixed in 12.18.4, 14.11.0

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-2020-8201/ (Markdown: https://insights.sbomify.com/CVE-2020-8201/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-8201
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-8201
- OSV: https://osv.dev/vulnerability/CVE-2020-8201

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-8201/
Summaries are generated and may contain mistakes; the official description above is the record.