NGINX

CVE-2024-24989: NGINX HTTP/3 QUIC vulnerability

When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed requests can cause NGINX worker processes to terminate.

Published

ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 3.1 7.5
EPSS1.1%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable

Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.

Affected and fixed versions

Product / branchFixed in
NGINX Plus R31R31 P1 or later
NGINX Open Source 1.251.25.4 or later

Always confirm against the vendor advisory, which lists every fixed hotfix.

What it is

When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed requests can cause NGINX worker processes to terminate.

Note: The HTTP/3 QUIC module is not enabled by default and is considered experimental. For more information, refer to Support for QUIC and HTTP/3 https://nginx.org/en/docs/quic.html .

NOTE: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Sources

KEV status, EPSS score and vendor data refreshed automatically, last on 12 Oct 2026.

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