GHSA-f9rj-grmf-4hrc
GitHub Security Advisory
⚠ Unreviewed
CRITICAL
Has CVE
Advisory Details
An out-of-bounds read occurs when applying style rules to pseudo-elements, such as ::first-line, using cached style data. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
Related CVEs
Key Information
9.0
/10
Dataset
Last updated: November 25, 2025 6:29 AM
Data from GitHub Advisory Database. This information is provided for research and educational purposes.