{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-45173: Idira Identity Browser Extension: Unauthorized Application Interaction via Origin Validation Failure","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-45173","status":"final","version":"1","initial_release_date":"2026-06-11T21:33:25.484Z","current_release_date":"2026-06-12T13:40:22.091Z","revision_history":[{"date":"2026-06-11T21:33:25.484Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"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","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-45173 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-45173"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-45173"},{"category":"external","summary":"docs.cyberark.com","url":"https://docs.cyberark.com/find-identity-administration-docs/latest/en/content/getstarted/identity-new-doc-location.htm"}]},"product_tree":{"branches":[{"category":"vendor","name":"CyberArk Software, a Palo Alto Networks Company","branches":[{"category":"product_name","name":"Identity Browser Extensions","branches":[{"category":"product_version_range","name":">=26.0.0 <26.8.1","product":{"name":"CyberArk Software, a Palo Alto Networks Company Identity Browser Extensions >=26.0.0 <26.8.1","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:cyberark_software\\,_a_palo_alto_networks_company:identity_browser_extensions:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-45173","title":"Idira Identity Browser Extension: Unauthorized Application Interaction via Origin Validation Failure","notes":[{"category":"description","text":"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","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v4":{"version":"4.0","vectorString":"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","baseScore":8.4,"baseSeverity":"HIGH"},"products":["CSAFPID-1"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 26.8.1.","product_ids":["CSAFPID-1"]}]}]}