Access Control Bypass Affecting org.springframework.security:spring-security-core package, versions [7.1.0,7.1.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published26 Aug 2026
- disclosed20 Aug 2026
- creditUnknown
Introduced: 20 Aug 2026
NewCVE-2026-59277 (opens in a new tab)How to fix?
Upgrade org.springframework.security:spring-security-core to version 7.1.1 or higher.
Overview
org.springframework.security:spring-security-core is a package that provides security services for the Spring IO Platform.
Affected versions of this package are vulnerable to Access Control Bypass in the InetAddressMatchers process. An attacker can bypass network-based access control checks by supplying the IPv4 or IPv6 "any local" addresses (0.0.0.0 or ::), which are incorrectly classified as external rather than internal. This is only exploitable if the application uses InetAddressMatchers.matchInternal() or InetAddressMatchers.matchExternal() and relies on their classification to make access control decisions for 0.0.0.0 or ::.