How severe is CVE-2026-45173?

CVE-2026-45173 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-45173 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-45173?

CVE-2026-45173 affects Paloaltonetworks Idira Identity Browser Extension. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-45173?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-45173 have an EU (EUVD) identifier?

Yes. CVE-2026-45173 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36363.

When was CVE-2026-45173 published?

CVE-2026-45173 was published on 2026-06-11 and last updated on 2026-06-22.

CVE-2026-45173

CVE-2026-45173 is a medium-severity vulnerability in Paloaltonetworks Idira Identity Browser Extension with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-346.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 8.4
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36363
Weakness: CWE-346
Affected product: Paloaltonetworks Idira Identity Browser Extension
Published: 2026-06-11
Last modified: 2026-06-22

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

Frequently asked questions

What is CVE-2026-45173?: 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
How severe is CVE-2026-45173?: CVE-2026-45173 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-45173 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-45173?: CVE-2026-45173 affects Paloaltonetworks Idira Identity Browser Extension. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-45173?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-45173 have an EU (EUVD) identifier?: Yes. CVE-2026-45173 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36363.
When was CVE-2026-45173 published?: CVE-2026-45173 was published on 2026-06-11 and last updated on 2026-06-22.

References

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

Affected products (1)

cpe:2.3:a:paloaltonetworks:idira_identity_browser_extension:*:*:*:*:*:-:*:*

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