What’s Vulnerable › Vulnerabilities

CVE-2020-6399

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-02-11 · updated 2026-06-17
• Weakness: CWE-20

Description

Insufficient policy enforcement in AppCache in Google Chrome prior to 80.0.3987.87 allowed a remote attacker to leak cross-origin data via a crafted HTML page.

Affected products

• Google Chrome: before 80.0.3987.87 — fixed in 80.0.3987.87
• openSUSE Backports Sle: 15.0-sp1

How to fix

Upgrade to a fixed version: Google Chrome 80.0.3987.87. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00015.html
• http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00025.html
• https://access.redhat.com/errata/RHSA-2020:0514
• https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop.html
• https://crbug.com/1039869
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3B5RWJQD5LA45MYLLR55KZJOJ5NVZGP/
• https://security.gentoo.org/glsa/202003-08
• https://www.debian.org/security/2020/dsa-4638
• http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00015.html
• http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00025.html
• https://access.redhat.com/errata/RHSA-2020:0514

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