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,...

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-2026-76036

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...

CVE-2026-56864: Improper Verification of Cryptographic Signature

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-2026-76037

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...

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...

CVE-2026-42501: Improper Verification of Cryptographic Signature

A malicious module proxy can exploit a flaw in the go command's validation of module checksums to bypass checksum database validation. This vulnerability affects any user using an untrusted module proxy GOMODPROXY or checksum database GOSUMDB. A malicious module proxy can serve altered versions o...