CVE-2026-121063 — Vulnerability intelligence

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Published: 2026-11-03T21:17:10.973

CVSS

Not available

CISA KEV

Not listed; not proof of no exploitation

Original source text (not a translation)

Incorrect authorization in CacheStorage in Google Chrome prior to 157.0.8103.38 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)

Sources

• CVE-2026-121063
• Original advisory
• Original advisory