Input validation error in ip-address - CVE-2026-69198
Published: August 31, 2026
Vulnerability details
The vulnerability allows a remote attacker to bypass SSRF and trust-boundary checks.
The vulnerability exists due to improper input validation in the special-use classification methods built on isInSubnet when parsing an address string with a CIDR suffix. A remote attacker can supply a specially crafted address such as an internal address with a shorter CIDR suffix to bypass SSRF and trust-boundary checks.
Exploitation requires an application to accept a bare address string that may include a CIDR suffix and classify it before using the resulting address.