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Update module golang.org/x/mod to v0.40.0 [SECURITY] - autoclosed - #586
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This PR contains the following updates:
v0.31.0→v0.40.0Warning
Some dependencies could not be looked up. Check the warning logs for more information.
Fix transparency log tile verification bypass in golang.org/x/mod/sumdb/tlog
BIT-golang-2026-56865 / CVE-2026-56865 / GO-2026-6179
More information
Details
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 cannot be detected by evaluating the transparency log.
All tiles are now correctly verified against their parents.
In order to determine if you have been affected:
rm -r go.sum go.work.sum vendor/ && go mod tidy
Severity
Unknown
References
This data is provided by OSV and the Go Vulnerability Database (CC-BY 4.0).
Ignore unrelated, unauthenticated hashes in Lookup in golang.org/x/mod/sumdb
BIT-golang-2026-56864 / CVE-2026-56864 / GO-2026-6180
More information
Details
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
Severity
Unknown
References
This data is provided by OSV and the Go Vulnerability Database (CC-BY 4.0).
Configuration
📅 Schedule: (UTC)
🚦 Automerge: Enabled.
♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.
🔕 Ignore: Close this PR and you won't be reminded about this update again.
This PR has been generated by Mend Renovate CLI.