GHSA-r6ch-mqf9-qc9w

Regular Expression Denial of Service in Headers

Source: GitHub Advisory Database (reviewed) High CVE-2023-24807

Packages

Ecosystem	Package	Affected	Fixed in
npm	undici	< 5.19.1	5.19.1

Details

As written in the advisory (Markdown source, shown as plain text).

### Impact The `Headers.set()` and `Headers.append()` methods are vulnerable to Regular Expression Denial of Service (ReDoS) attacks when untrusted values are passed into the functions. This is due to the inefficient regular expression used to normalize the values in the `headerValueNormalize()` utility function. ### Patches This vulnerability was patched in v5.19.1. ### Workarounds There is no workaround. Please update to an unaffected version. ### References * https://hackerone.com/bugs?report_id=1784449 ### Credits Carter Snook reported this vulnerability.

References

External links from the advisory. They lead to third-party sites.

https://github.com/nodejs/undici/security/advisories/GHSA-r6ch-mqf9-qc9w web
https://nvd.nist.gov/vuln/detail/CVE-2023-24807 advisory
https://github.com/nodejs/undici/commit/f2324e549943f0b0937b09fb1c0c16cc7c93abdf web
https://github.com/nodejs/undici package
https://github.com/nodejs/undici/releases/tag/v5.19.1 web
https://hackerone.com/bugs?report_id=1784449 web