CVE-2026-45173: Idira Identity Browser Extension (Chrome, Firefox, and Edge builds) versions prior to 26.8.1 exhibit an origin

Routine

MEDIUM 6.5UPGRADE

CVE-2026-45173 is a medium-severity flaw (CVSS 6.5) affecting idira identity browser extension. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 Securi

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-346
Published	2026-06-11
Last modified	2026-10-26

Publisher (CNA): Palo Alto Networks, Inc. · Vendor: paloaltonetworks

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-11 22:16 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

paloaltonetworks idira identity browser extension UPGRADE

Affected: >= 26.0.0 and < 26.8.1

Fixed in: 26.8.1

Safe to downgrade to: a release before 26.0.0

1. Check installed version

apt-cache policy idira-identity-browser-extension || rpm -q idira-identity-browser-extension || idira-identity-browser-extension --version

2. UPGRADE to 26.8.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade idira-identity-browser-extension

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade idira-identity-browser-extension

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 26.0.0 (Debian / Ubuntu)

apt-cache madison idira-identity-browser-extension sudo apt install idira-identity-browser-extension=<VERSION_BEFORE_26.0.0> sudo apt-mark hold idira-identity-browser-extension

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list idira-identity-browser-extension sudo dnf downgrade idira-identity-browser-extension-<VERSION_BEFORE_26.0.0> sudo dnf versionlock add idira-identity-browser-extension

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-45173?

idira identity browser extension: upgrade to 26.8.1. Exact commands for each OS are on this page.

Is CVE-2026-45173 being exploited?

CVE-2026-45173 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-45173 affect?

CVE-2026-45173 affects idira identity browser extension. Severity is medium (CVSS 6.5). 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 web

How urgent is CVE-2026-45173?

Priority 24/100. No elevated risk signals yet.

Software pages

Google Chrome vulnerabilities · Mozilla Firefox vulnerabilities

References

← Back to latest CVEs