GHSA-4fh9-jvf5-584j
GitHub Security Advisory
⚠ Unreviewed
MODERATE
Has CVE
Advisory Details
When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do not make sense coming from a DoH resolver. However when an IPv4 address was mapped through IPv6, these addresses were erroneously let through, leading to a potential DNS Rebinding attack. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
Related CVEs
Key Information
5.0
/10
Dataset
Last updated: November 24, 2025 6:29 AM
Data from GitHub Advisory Database. This information is provided for research and educational purposes.