Auth bypass in Google Chrome
CVE-2021-38016
Insufficient policy enforcement in background fetch in Google Chrome prior to 96.0.4664.45 allowed a remote attacker to bypass same origin policy via a crafted HTML page.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (55.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Google Chrome — versions unspecified
- Debian Linux — versions 10.0, 11.0
- Fedoraproject Fedora — versions 34
Weakness classification (CWE)
References
- chromereleases.googleblog.com/2021/11/stable-channel-update-for-desktop.html (Vendor Advisory)
- crbug.com/1244289 (Permissions Required)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.debian.org/security/2022/dsa-5046 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-38016?
- CVE-2021-38016 is a high-severity vulnerability in Google Chrome, classified under Incorrect Authorization. CVSS score: 8.8/10. Published 2021-12-23.
- How severe is CVE-2021-38016?
- High severity. CVSS v3 base score is 8.8 out of 10.