CVE-2026-56865

Technical details about CVE-2026-56865 are not publicly available in the provided documents. Monitor for updates.

GO-2026-6179 Fix transparency log tile verification bypass in golang.org/x/mod/sumdb/tlog

A malicious GOPROXY was previously capable of forging up to two sumdb tiles that allow for a requested module to bypass the GOSUMDB check and persist attacker-controlled module content to a local Go module cache. This attack allows for a malicious GOPROXY to serve malicious module content that...

GO-2026-6180 Ignore unrelated, unauthenticated hashes in Lookup in golang.org/x/mod/sumdb

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...

PT-2026-71901

Name of the Vulnerable Software and Affected Versions Go affected versions not specified Description A malicious GOPROXY could forge up to two sumdb tiles, enabling a requested module to bypass the GOSUMDB check. This allows attacker-controlled module content to persist in a local Go module cache...

PT-2026-71900

Name of the Vulnerable Software and Affected Versions Go affected versions not specified Description A malicious GOSUMDB can serve arbitrary module content that is not present in the transparency log. This allows a coordinating GOPROXY and GOSUMDB to deliver malicious module content to a client,...

ROS-20260622-73-0031

The vulnerability of GOMODPROXY and GOSUMDB modules written in the Go programming language is related to improper verification of the cryptographic signature. Exploiting this vulnerability allows a malicious actor to bypass security restrictions and gain access to read and modify data...