GHSA-fv4x-hrpq-wqgp
GitHub Security Advisory
⚠ Unreviewed
MODERATE
Has CVE
Advisory Details
Firefox behaved slightly differently for already known resources when loading CSS resources involving CSS variables. This could have been used to probe the browser history. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.
Related CVEs
Key Information
5.0
/10
Dataset
Last updated: November 25, 2025 6:29 AM
Data from GitHub Advisory Database. This information is provided for research and educational purposes.