Update module golang.org/x/mod to v0.40.0 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
golang.org/x/mod	v0.37.0 → v0.40.0

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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

• https://go.dev/issue/80744
• https://groups.google.com/g/golang-announce/c/94pEornpRlI
• https://go.dev/cl/814960
• https://go.dev/cl/815020

This data is provided by OSV and the Go Vulnerability Database (CC-BY 4.0).

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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

• https://go.dev/issue/80745
• https://groups.google.com/g/golang-announce/c/94pEornpRlI
• https://go.dev/cl/815000
• https://go.dev/cl/815020

This data is provided by OSV and the Go Vulnerability Database (CC-BY 4.0).

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[renovate]

ℹ️ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

• 7 additional dependencies were updated

Details:

Package	Change
golang.org/x/crypto	v0.53.0 -> v0.55.0
golang.org/x/net	v0.56.0 -> v0.58.0
golang.org/x/sync	v0.21.0 -> v0.22.0
golang.org/x/sys	v0.46.0 -> v0.47.0
golang.org/x/term	v0.44.0 -> v0.45.0
golang.org/x/text	v0.39.0 -> v0.41.0
golang.org/x/tools	v0.47.0 -> v0.49.0

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.21%. Comparing base (5559aeb) to head (95fab68).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #605   +/-   ##
=======================================
  Coverage   75.21%   75.21%           
=======================================
  Files          18       18           
  Lines        2679     2679           
=======================================
  Hits         2015     2015           
  Misses        453      453           
  Partials      211      211           

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