Untrusted Pointer Dereference in hyperscan - CVE-2026-34489
Published: November 13, 2026
Vulnerability identifier: #VU166164
CSH Severity: Low
CVSS v4: 5.9 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-34489
CWE-ID: CWE-822
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A local attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Affected software
hyperscan
How to mitigate CVE-2026-34489
Install updates from vendor's website.
hyperscan - update to 5.4.2.1