CVE-2025-22866 Information

Description

Due to the usage of a variable time instruction in the assembly implementation of an internal function a small number of bits of secret scalars are leaked on the ppc64le architecture. Due to the way this function is used we do not believe this leakage is enough to allow recovery of the private key when P-256 is used in any well known protocols.

Reference

https://go.dev/cl/643735 https://go.dev/issue/71383 https://groups.google.com/g/golang-announce/c/xU1ZCHUZw3k https://pkg.go.dev/vuln/GO-2025-3447