Medium severity4.3NVD Advisory· Published Jul 29, 2023· Updated Jun 17, 2026

CVE-2021-4321

Description

Policy bypass in Blink in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Low)

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Google/Chrome3 versions
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*range: <91.0.4472.77
- (no CPE)range: <91.0.4472.77
- (no CPE)range: 91.0.4472.77

Patches

Vulnerability mechanics

References

crbug.com/1161891nvdExploitIssue TrackingVendor Advisory
chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.htmlnvdRelease NotesVendor Advisory
lists.fedoraproject.org/archives/list/[email protected]/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/nvd

News mentions

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cvss	0.280
epss	0.000
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kev	0.000
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ransomware	0.000