CVE-2024-5687

Severity: medium (CVSS 5.3 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: yes
Published: 2024-06-11 · updated 2026-06-17
Weakness: CWE-284

Description

If a specific sequence of actions is performed when opening a new tab, the triggering principal associated with the new tab may have been incorrect. The triggering principal is used to calculate many values, including the `Referer` and `Sec-*` headers, meaning there is the potential for incorrect security checks within the browser in addition to incorrect or misleading information sent to remote websites. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox < 127.

Affected products

Mozilla Firefox: before 127.0 — fixed in 127.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 127.0. Check the vendor advisory for mitigations.

References

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