CVE-2024-27983
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 87.2%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.0
- 8.2 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
- EPSS
- 87.21% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Source
- support@hackerone.com
EPSS 87.2% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2024/04/03/16
- https://hackerone.com/reports/2319584
- 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/YDVFUH7ACZPYB3BS4SVILNOY7NQU73VW/
- https://security.netapp.com/advisory/ntap-20240510-0002/
- http://www.openwall.com/lists/oss-security/2024/04/03/16
- https://hackerone.com/reports/2319584
- 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/YDVFUH7ACZPYB3BS4SVILNOY7NQU73VW/
- https://security.netapp.com/advisory/ntap-20240510-0002/
- https://www.kb.cert.org/vuls/id/421644
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.