CVE-2026-17976: Insufficient policy enforcement in Extensions in Google Chrome prior to 151.0.7922.72 allowed an attacker who
CVE-2026-17976 is a medium-severity flaw (CVSS 4.3) affecting chrome. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Insufficient policy enforcement in Extensions in Google Chrome prior to 151.0.7922.72 allowed an attacker who convinced a user to install a malicious extension to bypass discretionary access control via a crafted domain name. (Chromium security severity: Low)
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.3 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.2% (top 92%) |
| CISA exploited list | No |
| Weakness | CWE-284 |
| Published | 2026-07-30 |
| Last modified | 2026-10-23 |
Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-17976?
chrome: upgrade to 151.0.7922.72. Exact commands for each OS are on this page.
Is CVE-2026-17976 being exploited?
CVE-2026-17976 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-17976 affect?
CVE-2026-17976 affects chrome. Severity is medium (CVSS 4.3). Insufficient policy enforcement in Extensions in Google Chrome prior to 151.0.7922.72 allowed an attacker who convinced a user to install a malicious extension to bypass discretionary access control via a crafted domain name. (Chromium secu
How urgent is CVE-2026-17976?
Priority 17/100. No elevated risk signals yet.
Software pages
Google Chrome vulnerabilities · Chromium vulnerabilities
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