CVE-2026-17820: Insufficient policy enforcement in Autofill in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security
Insufficient policy enforcement in Autofill in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-17820
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-178200.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-17820 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
Recent advisories for Insufficient policy enforcement
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-18016: Insufficient policy enforcement in Chrome for iOS in Google Chrome on iOS prior to 151.0.7922.…nvd · 2026-07-30
- mediumCVE-2026-18004: Insufficient policy enforcement in Speech in Google Chrome prior to 151.0.7922.72 allowed a re…nvd · 2026-07-30
- lowCVE-2026-18000: Insufficient policy enforcement in USB in Google Chrome on Android prior to 151.0.7922.72 allo…nvd · 2026-07-30
- mediumCVE-2026-17986: Insufficient policy enforcement in Bluetooth in Google Chrome prior to 151.0.7922.72 allowed a…nvd · 2026-07-30
- mediumCVE-2026-17985: Insufficient policy enforcement in Speech in Google Chrome prior to 151.0.7922.72 allowed a re…nvd · 2026-07-30
- mediumCVE-2026-17976: Insufficient policy enforcement in Extensions in Google Chrome prior to 151.0.7922.72 allowed …nvd · 2026-07-30
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