Xray-core: Pinning a CA certificate via pinnedPeerCertSha256 can lead to the success of MITM attacks

Date Oct 2, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product Go · github.com/xtls/xray-core
High-risk advisory

Summary

Xray-core: Pinning a CA certificate via pinnedPeerCertSha256 can lead to the success of MITM attacks

Why it matters

GitHub has published a reviewed security advisory for github.com/xtls/xray-core. Prioritize it with other application dependency updates.

Operator check

Check whether github.com/xtls/xray-core is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 7.6.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.