CVE-2026-22263

5.3 mediumEPSS 0.4%

Medium (5.3) in oisf suricata. EPSS 0.4% chance of exploitation in the next 30 days.

Suricata is a network IDS, IPS and NSM engine. Starting in version 8.0.0 and prior to version 8.0.3, inefficiency in http1 headers parsing can lead to slowdown over multiple packets. Version 8.0.3 patches the issue. No known workarounds are available.

Severity

CVSS 3.1

5.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)
CWE: CWE-1050
Published: 2026-01-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

oisf:suricata

References

https://github.com/OISF/suricata/commit/018a377f74e3eb2b042c6f783ad9043060923428
https://github.com/OISF/suricata/security/advisories/GHSA-rwc5-hxj6-hwx7
https://redmine.openinfosecfoundation.org/issues/8201

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