CVE-2026-87491
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...
- Published
- Sep 9, 2026
- Updated
- Sep 21, 2026
- Assigning CNA
- Chrome
- Evidence observed
- Sep 9, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 87.7%
- Model date
- Oct 15, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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)
Sources
Chrome 152 V8 exploit chaining CVE-2026-85046 and CVE-2026-87491 to corrupt the heap, forge Wasm metadata, and execute native code from the renderer.
Chained Chrome V8 renderer escape proof-of-concept exploiting four CVEs: Float64Array corruption, Wasm overwrite, popup navigation retargeting, and activation misattribution.
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