Which products and versions are affected by CVE-2026-87491?

Affected: Chrome (Google) versions >= 153.0.8010.36; Edge Chromium (Microsoft); chromium (chainguard), among others. The full list is in the CVE brief.

Is CVE-2026-87491 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 8, 2026.

Is CVE-2026-87491 in the CISA KEV catalog?

Yes. It was added on Sep 9, 2026 with a federal remediation due date of Sep 23, 2026.

Is there a public exploit for CVE-2026-87491?

Public exploit code is available.

Is there a fix for CVE-2026-87491?

Fixed versions are available, including Chrome 153.0.8010.36, chromedriver 153.0.8010.36-1.1, chromedriver 153.0.8010.36-bp160.1.1.

How urgently should CVE-2026-87491 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Request A Demo

Vulnerability Intelligence

CVE-2026-87491

HighExploitedPublic exploit

Out of bounds write in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page.

Published Sep 9, 2026 · Updated Oct 3, 2026 · Also known as EUVD-2026-74529, GHSA-8x3p-8g9v-xc7m

Key Facts

Patch immediately

CVE-2026-87491 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Chrome (Google), Edge Chromium (Microsoft), chromium (chainguard) and 1 more product.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 8, 2026. Public exploit code is available.
EPSS estimates a 3.1% probability of exploitation in the next 30 days.
Fixed versions are available, including Chrome 153.0.8010.36, chromedriver 153.0.8010.36-1.1, chromedriver 153.0.8010.36-bp160.1.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

8.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

3.1%

Higher than 87.7% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2026-87491 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Out of bounds write in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Sep 9, 2026	Sep 23, 2026	Not reported
Industry KEV feed	Sep 8, 2026	Sep 23, 2026	Not reported
CIRCL KEV	Sep 9, 2026	Sep 23, 2026	Not reported
ENISA EUVD	Sep 9, 2026	n/a	Not reported

Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Affected Products

16 affected entries in total

Product	Affected versions	Fixed in
ChromeGoogle	>= 153.0.8010.36	153.0.8010.36
Edge ChromiumMicrosoft	See advisory	n/a
chromiumchainguard	See advisory	153.0.8010.36-r0
chromedriversuse	See advisory	153.0.8010.36-bp160.1.1

Patched Releases

Chrome

153.0.8010.36

chromedriver

153.0.8010.36-1.1, 153.0.8010.36-bp160.1.1

chromium

153.0.8010.36, 153.0.8010.36-1.1, 153.0.8010.36-bp160.1.1, 153.0.8010.36-r0, 153.0.8010.47-1, 153.0.8010.47-2~deb13u1, 153.0.8010.52-1~deb12u1

Timeline

Added to Industry KEV feed
Sep 8, 2026
Publicly disclosed
Sep 9, 2026
Added to CISA KEV
Sep 9, 2026
Added to CIRCL KEV
Sep 9, 2026
Added to ENISA EUVD
Sep 9, 2026
Last updated
Oct 3, 2026

Weakness Type

CWE-787 Out-of-bounds Write

References

15 more references in the full CVE brief

FAQ

Common Questions.

Out of bounds write in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page.
Affected: Chrome (Google) versions >= 153.0.8010.36; Edge Chromium (Microsoft); chromium (chainguard), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 8, 2026.
Yes. It was added on Sep 9, 2026 with a federal remediation due date of Sep 23, 2026.
Public exploit code is available.
Fixed versions are available, including Chrome 153.0.8010.36, chromedriver 153.0.8010.36-1.1, chromedriver 153.0.8010.36-bp160.1.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2026-87491 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.