{"id":"spring-security-98471db2fc78","seq":2096,"kind":"advisory","title":"cve-2026-59277 - LOW - Spring Security InetAddressMatchers Incomplete Internal Network Classification","url":"https://spring.io/security/cve-2026-59277","permalink":"https://vulnpulse.app/items/spring-security-98471db2fc78","summary":"Spring Security's InetAddressMatchers utility provides matchInternal() and matchExternal() builders for constructing an InetAddressMatcher that classifies a given IP address as belonging to an internal (private) or external (public) network. The internal address classification did not recognize the IPv4 and IPv6 \"any local\" addresses ( 0.0.0.0 and :: ) as internal. As a result, matchExternal() incorrectly classified these addresses as external, and matchInternal() failed to classify them as internal. Your application may be affected if the following are true: You use InetAddressMatchers.match…","severity":null,"techs":["spring","java"],"cves":["CVE-2026-59277"],"tags":["security"],"source":{"id":"spring-security","name":"Spring Security Advisories"},"published_at":"2026-08-20T00:00:00.000Z","fetched_at":"2026-10-21T16:17:45.704Z"}