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[main] Update module golang.org/x/mod to v0.40.0 [SECURITY] (main) - #767

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renovate/main-go-golang.org-x-mod-vulnerability
Oct 5, 2026
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stuggi merged 1 commit into
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renovate/main-go-golang.org-x-mod-vulnerability

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This PR contains the following updates:

Package Change Age Confidence
golang.org/x/mod v0.36.0 → v0.40.0 age confidence

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).


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This PR has been generated by Mend Renovate CLI.

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ℹ️ Artifact update notice

File name: modules/certmanager/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):

  • 5 additional dependencies were updated

Details:

Package Change
golang.org/x/net v0.56.0 -> v0.58.0
golang.org/x/sync v0.21.0 -> v0.22.0
golang.org/x/term v0.44.0 -> v0.45.0
golang.org/x/text v0.38.0 -> v0.41.0
golang.org/x/tools v0.45.0 -> v0.49.0
File name: modules/common/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):

  • 5 additional dependencies were updated

Details:

Package Change
golang.org/x/net v0.56.0 -> v0.58.0
golang.org/x/sync v0.21.0 -> v0.22.0
golang.org/x/term v0.44.0 -> v0.45.0
golang.org/x/text v0.38.0 -> v0.41.0
golang.org/x/tools v0.45.0 -> v0.49.0

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@stuggi stuggi left a comment

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/lgtm

@stuggi
stuggi merged commit f78e5cd into main Oct 5, 2026
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@ospk8s-renovate
ospk8s-renovate Bot deleted the renovate/main-go-golang.org-x-mod-vulnerability branch October 5, 2026 16:24
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