Vulnerability · Published Jun 11, 2026 · Assigned by palo_alto

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

High 8.4

In plain English

A high-severity security flaw in Identity Browser Extensions from CyberArk Software, a Palo Alto Networks Company. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).

Severity (CVSS 4.0)8.4High

Exploit odds (30 days)0.2%top 94.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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

Affected products (as reported)

Vendor	Product	Versions
CyberArk Software, a Palo Alto Networks Company	Identity Browser Extensions	26.0.0 – before 26.8.1

Weakness: CWE-346 · 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

References

https://docs.cyberark.com/find-identity-administration-docs/latest/en/content/getstarted/identity-new-doc-location.htm vendor-advisory