GHSA-9564-97j4-99c4
GitHub Security Advisory
⚠ Unreviewed
MODERATE
Has CVE
Advisory Details
If a server sends two Strict-Transport-Security (STS) headers for a single connection, they will be rejected as invalid and HTTP Strict Transport Security (HSTS) will not be enabled for the connection. This vulnerability affects Firefox < 55.
Related CVEs
Key Information
5.0
/10
Dataset
Last updated: September 14, 2025 6:31 AM
Data from GitHub Advisory Database. This information is provided for research and educational purposes.