Which versions of CyberArk PSM are affected by CVE-2026-45171?

CyberArk Privileged Session Manager (CVSS 8.7) contains an authenticated code execution vulnerability in versions prior to 15.0.3, 14.6.3, 14.2.5, and 14.0.5 that allows low-privileged users to…. A patch is available.

How to fix or mitigate CVE-2026-45171?

Within 24 hours: Inventory all CyberArk PSM deployments and determine current versions to identify affected systems. Within 7 days: Deploy patches to upgrade all affected instances to version 15.0.3, 14.6.3, 14.2.5, or 14.0.5 (depending on your baseline version). Within 30 days: Conduct a comprehensive audit of low-privileged account access to PSM and review session logs for any indicators of unauthorized credential access or infrastructure system compromise.

CyberArk PSM CVE-2026-45171

Q: What is the CVSS score of CVE-2026-45171?

CVE-2026-45171 has a CVSS 4.0 base score of 8.7 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:M/U:Amber. EPSS exploitation probability: 0.1%.

EUVD-2026-36365 HIGH

Path Traversal (CWE-22)

2026-06-11 palo_alto

GHSA-g3c5-h5qv-px3q

Path Traversal RCE Privileged Session Manager Vault

8.7

CVSS 4.0 · Vendor: palo_alto

Severity by source

Vendor (palo_alto) PRIMARY

8.7 CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:M/U:Amber

vuln.today AI

8.8 HIGH

Network-reachable PSM service exploitable by any low-privileged authenticated user (PR:L) with no user interaction, yielding code execution and full CIA impact on the PSM host.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (palo_alto).

CVSS VectorVendor: palo_alto

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:M/U:Amber

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Analysis Updated

Jun 12, 2026 - 05:28 vuln.today

v3 (cvss_changed)

Analysis Updated

Jun 12, 2026 - 05:28 vuln.today

v2 (cvss_changed)

Severity Changed

Jun 12, 2026 - 05:22 NVD

CRITICAL HIGH

CVSS changed

Jun 12, 2026 - 05:22 NVD

9.3 (CRITICAL) 8.7 (HIGH)

Re-analysis Queued

Jun 12, 2026 - 05:22 vuln.today

cvss_changed

Severity Changed

Jun 12, 2026 - 05:22 NVD

CRITICAL HIGH

CVSS changed

Jun 12, 2026 - 05:22 NVD

9.3 (CRITICAL) 8.7 (HIGH)

Patch available

Jun 12, 2026 - 02:01 EUVD

Analysis Generated

Jun 11, 2026 - 22:31 vuln.today

DescriptionCVE.org

Incomplete input validation and improperly configured folder permissions within Idira Privileged Session Manager (PSM) versions prior to 15.0.3, 14.6.3, 14.2.5, and 14.0.5, an authenticated, low-privileged user could potentially execute arbitrary code. CyberArk Security Bulletin: CA26-17 and CA26-18

AnalysisAI

Authenticated arbitrary code execution in CyberArk Privileged Session Manager (PSM) versions prior to 15.0.3, 14.6.3, 14.2.5, and 14.0.5 allows low-privileged users to escape intended boundaries through incomplete input validation combined with misconfigured folder permissions. Because PSM brokers privileged sessions to critical infrastructure, code execution here directly threatens vaulted credentials and downstream targets, making this a high-impact issue despite requiring authentication. No public exploit identified at time of analysis, but the CVSS 4.0 base score of 8.7 reflects the severity of compromising a PAM component.

Technical ContextAI

CyberArk PSM is the session-brokering component of the CyberArk Privileged Access Management (PAM) Self-Hosted suite (CPE cpe:2.3:a:cyberark_software...:privileged_session_manager,_vault), used to proxy and record privileged sessions to managed targets. The root cause maps to CWE-22 (Path Traversal): the application accepts user-controlled path-like input without sufficient canonicalization, and the underlying filesystem ACLs on PSM working folders grant write access where they should not. The combination means an attacker who can authenticate as a low-privileged PSM user can place or reference files outside of intended directories, ultimately reaching a code-execution sink - a classic path-traversal-to-RCE chain reported by Palo Alto Networks (now the parent of CyberArk) and tracked as CyberArk advisories CA26-17 and CA26-18.

RemediationAI

Vendor-released patch: upgrade PSM to 15.0.3, 14.6.3, 14.2.5, or 14.0.5 on the corresponding branch per CyberArk Security Bulletins CA26-17 and CA26-18, using the release notes linked above as the authoritative source for build numbers. Until patches can be deployed, tighten NTFS/ACL permissions on PSM installation and recordings directories so that the PSM service account is the only writer, audit and shrink the population of low-privileged PSM users (especially shared or vendor accounts), and restrict network access to the PSM web/RDP front end to a small jump-host range - these controls reduce who can reach the vulnerable input paths but do not eliminate the traversal sink, and over-tightening recording folder ACLs can break session-recording playback, so test before rolling out. Increase monitoring on PSM hosts for unexpected child processes of the PSM service and for file writes outside the standard recordings/working paths.