CVE-2026-45173 HIGH

CVE-2026-45173: Idira Identity Browser Extension: Unauthorized Application Interaction via Origin Validation Failure

Vendor Cyberark Software, A Palo Alto Networks Company
Product Identity Browser Extensions
Weakness CWE-346 · Origin validation
Published June 11, 2026
Last update June 12, 2026
View on NVD All CVEs

CVSS base score

8.4/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

Idira Identity Browser Extension (Chrome, Firefox, and Edge builds) versions prior to 26.8.1 exhibit an origin validation flaw within its internal web-page verification routines. If an authenticated user navigates to a specially crafted webpage, this interaction could potentially allow a remote attacker to trigger unauthorized application interaction or execution parameters within the context of that authenticated browser session. CyberArk Security Bulletin: CA26-21

Key dates

02Disclosure timeline

June 11, 2026 CVE published
June 12, 2026 Record updated