CVE-2026-17743: Insufficient policy enforcement in ControlledFrame in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium

mediumCVSS 6.5CVE-2026-17743

Insufficient policy enforcement in ControlledFrame in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)

Details

Source: NVD Recent CVEs (US · database · site)
Severity: medium — CVSS 6.5
Published: 2026-07-30
Last updated: 2026-08-03
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-17743

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-2026-177430.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-17743	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownMultiples vulnérabilités dans Microsoft Edge (03 août 2026)cert-fr-avis
unknownCVE-2026-17743: Chromium: CVE-2026-17743 Insufficient policy enforcement in ControlledFramemsrc

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