What’s Vulnerable › Vulnerabilities

CVE-2024-5840

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-11 · updated 2026-06-17
• Weakness: CWE-284

Description

Policy bypass in CORS in Google Chrome prior to 126.0.6478.54 allowed a remote attacker to bypass discretionary access control via a crafted HTML page. (Chromium security severity: Medium)

Affected products

• Fedoraproject Fedora: 39, 40
• Google Chrome: before 126.0.6478.54 — fixed in 126.0.6478.54

How to fix

Upgrade to a fixed version: Google Chrome 126.0.6478.54. Check the vendor advisory for mitigations.

References

• https://chromereleases.googleblog.com/2024/06/stable-channel-update-for-desktop.html
• https://issues.chromium.org/issues/41492103
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7VXA32LXMNK3DSK3JBRLTBPFUH7LTODU/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MPU7AB53QQVNTBPGRMJRY5SXJNYWW3FX/
• https://chromereleases.googleblog.com/2024/06/stable-channel-update-for-desktop.html
• https://issues.chromium.org/issues/41492103
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7VXA32LXMNK3DSK3JBRLTBPFUH7LTODU/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MPU7AB53QQVNTBPGRMJRY5SXJNYWW3FX/

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