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highclosedpatched

Chrome zero-day CVE-2026-87491 (V8 OOB write)

› Google Chrome / Chromium V8

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started
Sep 9, 2026
closed
Sep 9, 2026
CVEs
1
sources
2

## summary

September 9 2026 Chrome 153 patched CVE-2026-87491, a V8 out-of-bounds write Google said was exploited in the wild — the seventh Chrome zero-day of 2026. Fixed in 153.0.8010.36/.37. CISA KEV listed.

severity: Exploited in the wild / CISA KEV

## cve ids[1]

## affected

  • Before 153.0.8010.36/.37

## fixed in

  • 153.0.8010.36+
  • 153.0.8010.37+

## news & write-ups[2]

## notes & caveats

Verify primary vendor advisory for exact fixed versions; facts taken from public sources listed in links.