Inefficient regular expression complexity in ip-address - CVE-2026-111997
Published: October 30, 2026
Vulnerability identifier: #VU158509
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-111997
CWE-ID: CWE-1333
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to many % characters in input reaching a function call that uses the Address6 constructor. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
Affected software
ip-address
Db2 Developer Extension
Db2 Developer Extension
How to mitigate CVE-2026-111997
Install updates from vendor's website.
ip-address - update to 10.7.4
Db2 Developer Extension - update to 1.2.1
Db2 Developer Extension - update to 1.2.1