CVE-2021-21126 — Improper Input Validation in Google Chrome

CWE-20 — Improper Input ValidationCWE-287 — Improper Authentication7 documents7 sources
Severity
6.5MEDIUMNVD
EPSS
10.0%
top 6.93%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Google ChromeChromiumMicrosoft Edge Chromium
Timeline
PublishedFeb 9
Latest updateMay 24

Description

Insufficient policy enforcement in extensions in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass site isolation via a crafted Chrome Extension.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages4 packages

▶CVEListV5google/chromeunspecified — 88.0.4324.96
▶NVDgoogle/chrome< 88.0.4324.96
▶NVDmicrosoft/edge_chromium< 88.0.705.50
▶Debianchromium/chromium< 88.0.4324.96-0.1+3

🔴Vulnerability Details

3
GHSA
GHSA-vw8h-gwv6-w94m: Insufficient policy enforcement in extensions in Google Chrome prior to 88↗2022-05-24
▶
CVEList
CVE-2021-21126: Insufficient policy enforcement in extensions in Google Chrome prior to 88↗2021-02-09
▶
OSV
CVE-2021-21126: Insufficient policy enforcement in extensions in Google Chrome prior to 88↗2021-02-09
▶

📋Vendor Advisories

3
Chrome
Stable Channel Update for Desktop: CVE-2020-16044↗2021-01-19
▶
Microsoft
Chromium CVE-2021-21126: Insufficient policy enforcement in extensions↗2021-01-12
▶
Debian
CVE-2021-21126: chromium - Insufficient policy enforcement in extensions in Google Chrome prior to 88.0.432...↗2021
▶
CVE-2021-21126 — Improper Input Validation in Google | cvebase