CVE-2024-47522: Suricata ja4: invalid alpn leads to panic

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-10-16 · updated 2026-06-17
Weakness: CWE-617

Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to version 7.0.7, invalid ALPN in TLS/QUIC traffic when JA4 matching/logging is enabled can lead to Suricata aborting with a panic. This issue has been addressed in 7.0.7. One may disable ja4 as a workaround.

Affected products

OISF suricata: before 7.0.7 — fixed in 7.0.7

How to fix

Upgrade to a fixed version: OISF suricata 7.0.7. Check the vendor advisory for mitigations.

References

https://github.com/OISF/suricata/security/advisories/GHSA-w5xv-6586-jpm7
https://redmine.openinfosecfoundation.org/issues/7267
https://www.vicarius.io/vsociety/posts/cve-2024-47522-detect-suricata-vulnerability
https://www.vicarius.io/vsociety/posts/cve-2024-47522-mitigate-suricata-vulnerability

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