Undici vulnerable to Regular Expression Denial of Service in Headers
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 1.3%
exploitation probability
1.3%top 32% of all CVEs
observed exploitation
nono source reports it
Undici is an HTTP/1.1 client for Node.js. Prior to version 5.19.1, 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. This vulnerability was patched in v5.19.1. No known workarounds are available.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
nodejs · undiciReferences
https://github.com/nodejs/undici/commit/f2324e549943f0b0937b09fb1c0c16cc7c93abdfhttps://github.com/nodejs/undici/releases/tag/v5.19.1https://github.com/nodejs/undici/security/advisories/GHSA-r6ch-mqf9-qc9whttps://hackerone.com/bugs?report_id=1784449https://security.netapp.com/advisory/ntap-20230324-0010/