# CVE-2026-22263

## Summary

- **CVE ID:** CVE-2026-22263
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
- **CWE:** CWE-1050
- **Published:** Jan 27, 2026
- **Last Modified:** Mar 12, 2026

## Description

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.

## Affected Products

- OISF — suricata (>= 8.0.0, < 8.0.3)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.42%
- **EPSS Percentile:** 35.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._