Privilege Escalation in Squirro Cognitive Search

Executive Summary

CVE-2026-50770 is a vulnerability in Squirro Cognitive Search versions before 3.14.2 that allows a remote attacker to escalate privileges via a crafted request. The issue stems from improper access control, enabling a low-privilege user to perform administrative actions such as viewing users, uploading files, or accessing logs.

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Detection Guidance

Monitor for unusual privilege escalation attempts or unauthorized administrative actions in Squirro Cognitive Search logs. Check for requests with stolen session cookies or modified admin-level requests from low-privilege users. Use network monitoring tools to detect proxy interception attempts like Burp Suite traffic.

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Impact Analysis

An attacker could exploit this to perform unauthorized actions like retrieving user lists, uploading malicious files, or accessing sensitive logs. This could lead to data breaches, system compromise, or further network infiltration if combined with other vulnerabilities.

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Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's data protection principles or HIPAA's security requirements. Organizations using affected versions may face compliance violations, legal penalties, and reputational damage.

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Mitigation Strategies

Upgrade Squirro Cognitive Search to version 3.14.2 or later immediately. Review and restrict user roles to enforce least privilege. Monitor for suspicious activity and invalidate all active sessions. Implement network segmentation to limit access to administrative functions.

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