AIKIDO-2026-826135
spring-security-core is vulnerable to Improper Input Validation
37
Low Risk
This Affects:
spring-security-coreTL;DR
spring-security-core InetAddressMatchers does not treat IPv4 and IPv6 any-local addresses (0.0.0.0 and ::) as internal. matchExternal() therefore classifies them as external and matchInternal() fails to match them. Access-control rules that should treat those addresses as internal can make the wrong decision. The patch classifies any-local addresses as internal.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you use InetAddressMatchers.matchInternal() or matchExternal() for access control involving 0.0.0.0 or ::.
Background info
spring-security-core is vulnerable to Improper Input Validation in versions 7.1.0 - 7.1.0.
How to fix this
Upgrade the org.springframework.security:spring-security-core library to the patch version.
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SOC 2Compliant
ISO 27001Compliant