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VulnerabilityCVE-2026-102322Published 2026-10-06

CVE-2026-102322 — Google Chrome

criticalPublic exploit1 PoC repo

As of 2026-10-07, CVE-2026-102322 is a CRITICAL-severity vulnerability in Google Chrome, CVSS v3.1 9.6, EPSS 0.4% (33.1th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-102322, most recently “Multiple Vulnerabilities in Google Chrome prior to 155.0.8059.39 (incl. CVE-2026-102322 SiteIsolation RCE and CVE-2026-106386 WebAudio, public PoC reported)”.

CVSS v3.1
9.6/10Critical
EPSS
0.4%Higher than 33.1% of scored CVEs
CISA KEV
NoNot in the KEV catalog
Tracked threats
1Campaigns referencing it
Priority
8.1/10Threadlinqs triage score
Published
Updated 2026-10-07
CVSS v3.1 9.6 (CRITICAL) · EPSS 0.4% (higher than 33.1% of all scored CVEs) · Priority 8.1/10 · Published 2026-10-06

Last updated:

What is CVE-2026-102322?

Incorrect Authorization in SiteIsolation in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to execute arbitrary code via a crafted HTML page. (Chromium security severity: High)

The record classifies CVE-2026-102322 under weakness class CWE-863. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 4 days ago.

Severity and exploitation probability

CVSS v3.1 base score
9.6 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS (FIRST)
0.4% probability of exploitation in the next 30 days, higher than 33.1% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
8.1/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-10-06, last modified 2026-10-07

Is CVE-2026-102322 being exploited?

Weaponised exploit code for CVE-2026-102322 is publicly available. 1 public proof-of-concept repository is tracked for this identifier.

Affected products and versions

How to fix CVE-2026-102322

Vendor advisory: https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

Threat activity tracking CVE-2026-102322

1 tracked threat in the Threadlinqs corpus references CVE-2026-102322, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.

Other references