CVE-2024-27982

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-07 · updated 2026-06-17
Weakness: CWE-444

Description

The team has identified a critical vulnerability in the http server of the most recent version of Node, where malformed headers can lead to HTTP request smuggling. Specifically, if a space is placed before a content-length header, it is not interpreted correctly, enabling attackers to smuggle in a second request within the body of the first.

Affected products

Node.js: 20.12.0, 21.7.2, 18.20.0

References

https://hackerone.com/reports/2237099
https://hackerone.com/reports/2237099
https://lists.debian.org/debian-lts-announce/2024/09/msg00029.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JDECX4BYZLMM4S4LALN4DPZ2HUTTPLKE/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QJAKA33NJCI3XLQS2K36DRCUMWIFFYVU/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X4M5XZZONMS4DAZE3CNDFDRSB6JQCL6Y/
https://security.netapp.com/advisory/ntap-20250418-0001/

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