Use After Free Affecting suricata package, versions [,7.0.16)[8.0.0,8.0.5)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-UNMANAGED-SURICATA-21248797
- published19 Oct 2026
- disclosed10 Sept 2026
- creditUnknown
Introduced: 10 Sep 2026
CVE-2026-45751 (opens in a new tab)How to fix?
Upgrade suricata to version 7.0.16, 8.0.5 or higher.
Overview
Affected versions of this package are vulnerable to Use After Free in the dotprefix transform process when a chained transform causes the backing buffer to be reallocated, leaving an inspection pointer referencing freed memory. An attacker can cause a denial of service by sending specially crafted network traffic that triggers this condition. This is only exploitable if a rule chains the dotprefix transform after another transform.
Workaround
This vulnerability can be mitigated by avoiding rules that chain the dotprefix transform after another transform.