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CVE-2026-87491

HighCVSS 8.8/10Known exploited (CISA KEV)Last modified Sep 21, 2026

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)

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

Vendor	Product	Versions
Google	Chrome	>= 153.0.8010.36, < 153.0.8010.36

References

https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.htmlRelease Notes, Vendor Advisory
https://issues.chromium.org/issues/543557673Permissions Required
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-87491US Government Resource

Timeline

Published: Sep 9, 2026
Last modified: Sep 21, 2026
Added to CISA KEV: Sep 9, 2026
NVD status: Analyzed

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