EUVD-2026-67169
GHSA-w9mx-mx4m-6m48
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Network-reachable IP classification bypass requiring a specific edge-case trigger (AC:H); no authentication needed, impact is partial confidentiality only.
Primary rating from Vendor (vmware).
CVSS VectorNVD
Lifecycle Timeline
4DescriptionNVD
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. Spring Security 7.1.0
AnalysisAI
Spring Security 7.1.0's InetAddressMatchers utility contains a flaw in its IP address classification logic - the matchInternal() and matchExternal() builders may incorrectly categorize certain IP addresses as belonging to internal or external networks, enabling unauthenticated remote attackers to bypass IP-based access controls under high-complexity conditions. Applications that rely on InetAddressMatchers to enforce network-level access restrictions are exposed to limited information disclosure where restricted endpoints or data may become accessible to external parties. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The target application must use Spring Security 7.1.0 and must invoke the InetAddressMatchers API - specifically matchInternal() or matchExternal() builders - as part of its HTTP security filter chain to make access control decisions. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS rates this 3.7 Low with vector AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No specific patched version number is provided in the available intelligence data; consult the VMware/Broadcom Spring Security advisory at https://spring.io/security/cve-2026-59277 for the exact fix release and upgrade instructions. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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