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http-cache-semantics vulnerable to Regular Expression Denial of Service

http-cache-semantics Updated 03 May 2024

Summary

31/01/2023
CVE-2022-25881
Yes i
High
7.5

CVE-2022-25881: http-cache-semantics vulnerable to Regular Expression Denial of Service. Affects http-cache-semantics versions < 4.1.1. Fixed in 4.1.1. How to fix ↓

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http-cache semantics contains an Inefficient Regular Expression Complexity , leading to Denial of Service. This affects versions of the package http-cache-semantics before 4.1.1. The issue can be exploited via malicious request header values sent to a server, when that server reads the cache policy from the request using this library.

How To Fix

Latest published version: 4.3.0 as of 22 Oct 2026 

npm install http-cache-semantics@4.3.0

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

4.1.1

This is the first release that contains the fix.

npm install http-cache-semantics@4.1.1

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References

Related vulnerabilities

Recent vulnerabilities recorded for http-cache-semantics.

View all http-cache-semantics vulnerabilities →
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How To Fix

Latest published version: 4.3.0 as of 22 Oct 2026 

npm install http-cache-semantics@4.3.0

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

4.1.1

This is the first release that contains the fix.

npm install http-cache-semantics@4.1.1

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

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