HighFix available
nodejs — security advisory
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.
- Products
- nodejs
- Affected versions
- Not specified
- Fixed versions
- 16.19.1-r0, 18.14.1-r0
- CVEs
- CVE-2023-24807
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 14:55 UTC · Revision 1
Source evidence
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.
osv:ALPINE-CVE-2023-24807
nodejs
Fixed versions: 16.19.1-r0
nodejs
Fixed versions: 16.19.1-r0
nodejs
Fixed versions: 18.14.1-r0
nodejs
Fixed versions: 18.14.1-r0
nodejs
Fixed versions: 18.14.1-r0
nodejs
Fixed versions: 18.14.1-r0
nodejs
Fixed versions: 18.14.1-r0
nodejs
Fixed versions: 18.14.1-r0
nodejs
Fixed versions: 18.14.1-r0
nodejs
Fixed versions: 18.14.1-r0
Complete source record
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