World-Reachable IPC Endpoint Enables Local Privilege Escalation

clash-verge-service-ipc before 2.3.0 has a world-reachable IPC endpoint, leading to local privilege escalation.

Casky was already ahead

This CVE exploits attack patterns that Casky's 203matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

CVE-2026-26422 affects clash-verge-service-ipc versions before 2.3.0, exposing a critical vulnerability where an inter-process communication (IPC) endpoint is accessible to any local user on the system. This improper permissions configuration (CWE-732) creates a direct pathway for privilege escalation attacks. Any unprivileged process can interact with the service's IPC interface to execute commands or manipulate operations with elevated privileges. This vulnerability is particularly concerning for organizations running clash-verge-service as a higher-privileged process, as it effectively breaks the privilege boundary that should isolate sensitive system operations from untrusted user applications.

Casky's 203 matched security skills leverage Claude's extended reasoning to detect the attack patterns behind this vulnerability by analyzing MITRE ATT&CK Technique TA0004 (Privilege Escalation). Practitioners using Casky would observe detections focusing on unauthorized IPC socket access attempts, suspicious inter-process communication from low-privilege contexts targeting the clash-verge service, and behavioral indicators of permission abuse. The platform's skill-based approach would surface patterns such as processes without appropriate credentials attempting to invoke privileged service operations, file permission anomalies on IPC endpoints, and lateral movement attempts following successful privilege elevation. With Claude's reasoning capabilities, Casky would provide context-aware alerts that distinguish legitimate service communication from exploitation attempts, helping security teams prioritize response efforts and understand the attack progression from initial unprivileged access to system compromise.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

203 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-26422.

analyzing-cloud-storage-access-patterns

cloud security · low

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analyzing-kubernetes-audit-logs

container security · low

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analyzing-office365-audit-logs-for-compromise

cloud security · low

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MITRE ATT&CK Techniques

TA0004

Investigate the attack patterns behind CVE-2026-26422

Casky has 203 skills that investigate the attack patterns behind CVE-2026-26422. Run one and get CVSS-scored findings in 3 minutes.

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