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fix(deps): update module golang.org/x/mod to v0.40.0 [security] - #38914

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fix(deps): update module golang.org/x/mod to v0.40.0 [security]#38914
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This PR contains the following updates:

Package Change Age Confidence
golang.org/x/mod v0.38.0v0.40.0 age confidence

Fix transparency log tile verification bypass in golang.org/x/mod/sumdb/tlog

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

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).


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This PR has been generated by Mend Renovate.

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GiteaBot commented Aug 14, 2026

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⚠️ Artifact update problem

Renovate failed to update artifacts related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

  • any of the package files in this branch needs updating, or
  • the branch becomes conflicted, or
  • you click the rebase/retry checkbox if found above, or
  • you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: undefined
Command failed: install-tool pnpm 11.22.0

File name: undefined
Command failed: install-tool pnpm 11.22.0

File name: undefined
Command failed: install-tool pnpm 11.22.0

@GiteaBot GiteaBot added the lgtm/need 2 This PR needs two approvals by maintainers to be considered for merging. label Aug 14, 2026
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GiteaBot force-pushed the renovate/go-golang.org-x-mod-vulnerability branch 10 times, most recently from 1c57cd8 to 34804de Compare August 16, 2026 03:40
@GiteaBot
GiteaBot force-pushed the renovate/go-golang.org-x-mod-vulnerability branch from 34804de to 9568850 Compare August 16, 2026 14:35
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