Allocation of Resources Without Limits or Throttling in Suricata - CVE-2026-45763
Published: June 3, 2026
Vulnerability identifier: #VU133278
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-45763
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Open Information Security Foundation
Affected software:
Suricata
Suricata
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to allocation of resources without limits or throttling in the Lua sandbox when executing Lua rules. A remote attacker can use a crafted Lua script or rule with certain allocation patterns to cause a denial of service.
This requires Lua rule execution to be enabled and an affected Lua script or rule to be loaded.
How to mitigate CVE-2026-45763
Install security update from vendor's website.