Intel

CVE-2026-93379

chrome: Incorrect Authorization (CVE-2026-93379)

mediumEPSS 0.3%

Description

Incorrect authorization in ORB in Google Chrome prior to 153.0.8010.52 allowed a remote attacker to bypass site isolation via a crafted HTML page. (Chromium security severity: Low)

Source: Debian Security AdvisoriesBSI WID PortalBSI CSAFMicrosoft Security Update Guidecvelistv5NVD (NIST)

Affected products

The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

googlechrome
153.0.8010.52fixed from 153.0.8010.52

Metrics

XIEM Effective CVSS
4.3
Source: cna-v3
EPSS percentile
15.3 %
Elevated — this CVE ranks above at least 10% of all CVEs scored today.
KEV status
—
Show all metrics
Severity
medium
Priority score
53.38
Exploit maturity
no public PoC known
CVSS v3
4.3
EPSS score
0.3 %
Low — model estimates < 1% exploitation likelihood.
Published
2026-09-30 20:25 UTC
CWE
CWE-863

Weakness classes (CWE)

  • CWE-863Class

    Incorrect Authorization

    The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

    cwe.mitre.org →

References & sources

Reanalysis & status changes

Chronological NVD audit events for this CVE — reanalyses, CVSS updates, CPE diffs.

  1. CVE Modified2026-09-30 18:18 UTC· chrome-cve-admin@google.com
    • Description: Incorrect authorization in ORB in Google Chrome prior to 153.0.8010.52 allowed a remote attacker to bypass site isolation via a crafted HTML page. (Chromium security severity: High) → Incorrect authorization in ORB in Google Chrome prior to 153.0.8010.52 allowed a remote attacker to bypass site isolation via a crafted HTML page. (Chromium security severity: Low)
  2. Initial Analysis2026-09-21 11:09 UTC· nvd@nist.gov
    • CPE Configuration: OR *cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* versions up to (excluding) 153.0.8010.52
    • Reference Type: Chrome: https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0194356994.html Types: Release Notes, Vendor Advisory
    • Reference Type: Chrome: https://issues.chromium.org/issues/560039872 Types: Permissions Required
  3. CVE Modified2026-09-18 14:19 UTC· 134c704f-9b21-4f2e-91b3-4a467353bcc0
    • CVSS V3.1: AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
    • SSVC: {"id":"CVE-2026-93379","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalI…
  4. New CVE Received2026-09-17 21:17 UTC· chrome-cve-admin@google.com
    • Description: Incorrect authorization in ORB in Google Chrome prior to 153.0.8010.52 allowed a remote attacker to bypass site isolation via a crafted HTML page. (Chromium security severity: High)
    • CWE: CWE-863
    • Affected: New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/93xxx/CVE-2026-93379.json">CVE-2026-93379</a>
    • Reference: https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0194356994.html