What’s Vulnerable › Vulnerabilities

CVE-2024-31079: NGINX HTTP/3 QUIC vulnerability

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-29 · updated 2026-06-17
• Weakness: CWE-121

Description

When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 requests can cause NGINX worker processes to terminate or cause other potential impact. This attack requires that a request be specifically timed during the connection draining process, which the attacker has no visibility and limited influence over.

Affected products

• F5 NGINX Open Source: from 1.25.0 before 1.26.1 — fixed in 1.26.1
• F5 NGINX Plus: r30, r30-p1, r30-p2, r31, r31-p1
• Fedoraproject Fedora: 39, 40

How to fix

Upgrade to a fixed version: F5 NGINX Open Source 1.26.1. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2024/05/30/4
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MLAOKJWDALQZBIV3WKGPJ6T5Z56D3PRD/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R7RPLWC35WHEUFCGKNFG62ESNID25TEZ/
• https://my.f5.com/manage/s/article/K000139611
• http://www.openwall.com/lists/oss-security/2024/05/30/4
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MLAOKJWDALQZBIV3WKGPJ6T5Z56D3PRD/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R7RPLWC35WHEUFCGKNFG62ESNID25TEZ/
• https://my.f5.com/manage/s/article/K000139611

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