What’s Vulnerable › Vulnerabilities

CVE-2021-30630

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-08 · updated 2026-06-17
• Weakness: CWE-346

Description

Inappropriate implementation in Blink in Google Chrome prior to 93.0.4577.82 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page.

Affected products

• Fedoraproject Fedora: 33, 35
• Google Chrome: before 93.0.4577.82 — fixed in 93.0.4577.82

How to fix

Upgrade to a fixed version: Google Chrome 93.0.4577.82. Check the vendor advisory for mitigations.

References

• https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html
• https://crbug.com/1244568
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/
• https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html
• https://crbug.com/1244568
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/

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