CVE-2026-45174: Idira Endpoint Privilege Manager Linux Agent Local Privilege Escalation

Technical summary

This vulnerability stems from improper handling during daemon initialization in the Idira Endpoint Privilege Manager Linux Agent (CWE-404: Improper Resource Validation). The flaw allows a local, authenticated attacker to interfere with the agent daemon startup sequence and elevate their privileges without requiring root access or additional user interaction. The CVSS 3.1 score of 7.8 reflects the local attack vector but high impact across confidentiality, integrity, and availability. The vulnerability requires the attacker to already have legitimate local user access, which significantly limits spontaneous exploitation but remains serious in multi-user environments or systems where local accounts are widely distributed.

Business impact

Organizations running Idira Endpoint Privilege Manager on Linux systems face elevated insider threat and privilege escalation risks. A compromised agent daemon can allow attackers to bypass intended access controls, escalate to administrative privileges, and potentially move laterally within the infrastructure. This directly undermines the PAM solution's core purpose—managing and restricting privileged access. In regulated environments (healthcare, finance, government), failure to patch could trigger audit findings and compliance violations.

Affected systems

Palo Alto Networks Idira Endpoint Privilege Manager Linux Agent versions prior to 26.5 are affected. The vulnerability is specific to the Linux implementation; Windows and other platforms should be verified separately against the vendor advisory. Any organization deploying this agent for privilege management on Linux systems requires immediate assessment.

Exploitability

Exploitation requires local system access with unprivileged user-level privileges. An attacker cannot exploit this remotely or without an existing account on the target system. However, in environments where contractor accounts, developer sandbox accounts, or other non-administrative users are common, the threat surface expands. Once an attacker gains local access through phishing, credential compromise, or supply-chain infection, they can weaponize this flaw to escalate privileges without administrative or root credentials. The relatively low complexity (AC:L) means minimal additional setup or race conditions are required.

Remediation

Upgrade Idira Endpoint Privilege Manager Linux Agent to version 26.5 or later, per CyberArk Security Bulletin CA26-19. Verify the exact patch version through the vendor advisory before deployment. Organizations unable to patch immediately should implement compensating controls: restrict local account provisioning, monitor daemon initialization logs for anomalies, and segregate privileged agent systems from general-purpose networks.

Patch guidance

Consult CyberArk Security Bulletin CA26-19 for validated patch versions and deployment procedures. Verify compatibility with your existing Idira environment before rollout. Test patches in a non-production environment to confirm no service disruption. Monitor agent logs post-patch to confirm successful initialization.

Detection guidance

Monitor system logs for abnormal daemon initialization sequences or unexpected process privilege escalation tied to the Idira agent. Audit process creation events where the agent daemon or its child processes attempt unauthorized privilege escalation. Check for file permission changes in agent directories that may indicate tampering during startup. Endpoint Detection and Response (EDR) tools should flag suspicious activity coinciding with agent restart windows.

Why prioritize this

This vulnerability scores HIGH (7.8) due to full impact on confidentiality, integrity, and availability, even though attack prerequisites are significant. Prioritize patching in environments with shared or contractor local accounts, or in systems directly managing critical infrastructure credentials. In isolated PAM environments with tightly controlled local access, patching can follow standard maintenance windows—but should still be expedited given the direct threat to access control posture.

Risk score, explained

The CVSS 3.1 score of 7.8 reflects: (1) local attack vector, limiting broad Internet exploitation; (2) low complexity and no user interaction, meaning a determined local attacker needs minimal sophistication; (3) high impact across confidentiality, integrity, and availability, as successful exploitation yields effective root-equivalent capability. The score balances the requirement for pre-existing local access against the severe consequences of successful exploitation. Organizations with restrictive local account policies may perceive lower relative risk; those with permissive access models should treat this as critical.

Frequently asked questions