CVE-2024-27983: NodeJS Node · Race Condition
Affects NodeJS NodeSource GCVE Database
Not known to be exploited · CVSS 8.2 High.
Data as of 2 Nov 2026, 16:18 UTC
Thin evidence
One scorer or none| CNA (hackerone) | CVSS 3.0 | 8.2 |
|---|
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:HExploitation evidence
Disclosed: evidence found.
CVE published 9 Apr 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| NodeJS Node | Affected
| Fixed in– |
Description
An attacker can make the Node.js HTTP/2 server completely unavailable by sending a small amount of HTTP/2 frames packets with a few HTTP/2 frames inside. It is possible to leave some data in nghttp2 memory after reset when headers with HTTP/2 CONTINUATION frame are sent to the server and then a TCP connection is abruptly closed by the client triggering the Http2Session destructor while header frames are still being processed (and stored in memory) causing a race condition.
References
- hackerone.com/reports/2319584 (opens in a new tab)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JDECX4BYZLMM4S4LALN4DPZ2HUTTPLKE/ (opens in a new tab)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YDVFUH7ACZPYB3BS4SVILNOY7NQU73VW/ (opens in a new tab)
- openwall.com/lists/oss-security/2024/04/03/16 (opens in a new tab)
- security.netapp.com/advisory/ntap-20240510-0002/ (opens in a new tab)
- lists.debian.org/debian-lts-announce/2024/09/msg00029.html (opens in a new tab)
- kb.cert.org/vuls/id/421644 (opens in a new tab)