CVE-2021-21130

MEDIUM 6.5CVE-2021-21130 · Published 09/02/2021 · updated 17/06/2026

In short

CVE-2021-21130 is a MEDIUM (CVSS 6.5) vulnerability affecting chrome (google), edge chromium (microsoft).
Chance of exploitation in the next 30 days (EPSS): 5.4%, higher than 92.7% of all vulnerabilities.
Fix: update to 88.0.4324.96, 88.0.705.50 or later.

Package	Affected versions	Patched versions
chrome google	`< 88.0.4324.96`	`88.0.4324.96`
edge chromium microsoft	`< 88.0.705.50`	`88.0.705.50`

Description

Insufficient policy enforcement in File System API in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.

References

chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html · Release Notes
crbug.com/1140410 · Permissions Required
msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21130 · Third Party Advisory

More vulnerabilities in chrome

See all →

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free

Package

Affected versions

Patched versions

chrome

google

< 88.0.4324.96

88.0.4324.96

edge chromium

microsoft

< 88.0.705.50

88.0.705.50

More vulnerabilities in chrome

See all →