Review reviewHigh

CVE-2026-45173

CyberArk Software, a Palo Alto Networks Company Identity Browser Extensions, idira identity browser extension, chrome

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

CVSS: 8.4
EPSS: 0.16%
CISA KEV: Not listed
Published: 2026.06.12

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.16%

Technical severityCVSS 8.4

Vulnerability overview

Affected product and versions

Product: CyberArk Software, a Palo Alto Networks Company Identity Browser Extensions, idira identity browser extension, chrome
Affected versions: 26.0.0, >= 26.0.0 < 26.8.1
Fixed versions: 26.8.1

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that CyberArk Software, a Palo Alto Networks Company Identity Browser Extensions, idira identity browser extension, chrome and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

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/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:X/U:Amber
CWE: CWE-346