CVE-2026-56864

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...

CVE-2026-56864 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...

CVE-2026-56865 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...

CVE-2026-56865 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...

CVE-2026-56865

A vulnerability in x/mod/sumdb/tlog allows a malicious GOPROXY to forge up to two sumdb tiles. This enables an attacker to bypass GOSUMDB checks and persist attacker-controlled module content to a local Go module cache. This attack allows for the distribution of malicious module content that cann...

CVE-2026-56865

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-2026-56865

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

The golang package is affected by a vulnerability where a malicious GOSUMDB could serve arbitrary module content not contained within the transparency log. This allows a coordinating GOPROXY and GOSUMDB to deliver malicious module content to a client that cannot be detected by evaluating the tran...

CVE-2026-56865

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

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...

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-2026-76036

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-2026-71901

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...

CVE-2026-56865: Improper Verification of Cryptographic Signature

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...

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...

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,...

GHSA-84RM-42XW-MX52 Coder's AI Bridge Proxy skips TLS certificate verification in default configuration

Summary The AI Bridge Proxy aibridgeproxyd created a goproxy server whose default transport set InsecureSkipVerify: true and only assigned a secure transport when an upstream proxy was configured. In the default configuration no upstream proxy, outbound HTTPS to the Coder access URL accepted any...

PT-2026-91741

Name of the Vulnerable Software and Affected Versions goproxy versions prior to 15.4 Description The software fails to apply HTTP proxy basic authentication to CONNECT tunnel requests. This allows unauthenticated clients to bypass credential requirements by issuing CONNECT requests to establish...