CVE-2026-56864

CVE-2026-56864CVE-2026-56864

Description

A malicious GOSUMDB was capable of serving arbitrary module content not contained within the transparency log. This attack allows for a coordinating GOPROXY and GOSUMDB to serve a client malicious module content that cannot be detected by evaluating the transparency log. In order to determine if you have been affected: rm -r go.sum go.work.sum vendor/ && go mod tidy

Scoring

Last modified2026-08-13
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.