proxy-addr vulnerable to IP spoofing via IPv4-mapped IPv6 trust subnet
High-risk advisory
CVE-2026-90711
Summary
proxy-addr vulnerable to IP spoofing via IPv4-mapped IPv6 trust subnet
Why it matters
GitHub has published a reviewed security advisory for proxy-addr. Prioritize it with other application dependency updates, especially because EPSS places it in the 24% percentile.
Operator check
Check whether proxy-addr is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 0.3%; percentile: 24%.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.