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chore(deps): update go toolchain directive to v1.26.6 [security] - autoclosed #474

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renovate wants to merge 1 commits from renovate/golang-version-go-vulnerability into main
pull from: renovate/golang-version-go-vulnerability
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renovate commented 2026-08-14 01:09:29 +00:00
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This PR contains the following updates:

Package Type Update Change
go (source) toolchain patch 1.26.5 → 1.26.6

Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/net/idna

CVE-2026-39821 / GO-2026-5026

More information

Details

The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label. For example, ToUnicode("xn--example-.com") incorrectly returns the name "example.com" rather than an error.

This behavior can lead to privilege escalation in programs using the idna package. For example, a program which performs privilege checks on the ASCII hostname may reject "example.com" but permit "xn--example-.com". If that program subsequently converts the ASCII hostname to Unicode, it will inadvertently permits access to the Unicode name "example.com".

Severity

Unknown

References

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

Parsing an invalid SVCB or HTTPS RR can panic in golang.org/x/net/dns/dnsmessage

CVE-2026-46600 / GO-2026-5942

More information

Details

Parsing an invalid SVCB or HTTPS RR can panic when the size of a parameter value overflows the message buffer.

Severity

Unknown

References

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

Enforce maximum recursion depth in encoding/asn1

CVE-2026-33818 / GO-2026-5972

More information

Details

Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures.

Severity

Unknown

References

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

Add recursion depth guard during decode in encoding/xml

CVE-2026-56859 / GO-2026-6088

More information

Details

Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion.

Severity

Unknown

References

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

Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http

CVE-2026-56853 / GO-2026-6089

More information

Details

When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this.

Severity

Unknown

References

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

Limit handshake messages we are willing to accept post-handshake in crypto/tls

CVE-2026-56862 / GO-2026-6090

More information

Details

Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not. As a result, a malicious client can keep sending KeyUpdate messages to force the server to keep performing key derivation operations indefinitely.

Severity

Unknown

References

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

Fix Javascript regexp context tracking in html/template

CVE-2026-56858 / GO-2026-6091

More information

Details

Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.

Severity

Unknown

References

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

Avoid quadratic complexity in resolvePath in net/url

CVE-2026-56860 / GO-2026-6218

More information

Details

Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead.

Now, path resolution operates on a byte buffer using index-based backtracking for '..' segments, eliminating the quadratic time complexity and significantly reducing memory allocations.

Severity

Unknown

References

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

Configuration

📅 Schedule: (UTC)

  • Branch creation
    • At any time (no schedule defined)
  • Automerge
    • At any time (no schedule defined)

🚦 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.

  • If you want to rebase/retry this PR, check this box

This PR has been generated by Mend Renovate CLI.

This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [go](https://go.dev/) ([source](https://github.com/golang/go)) | toolchain | patch | `1.26.5` → `1.26.6` | --- ### Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/net/idna [CVE-2026-39821](https://nvd.nist.gov/vuln/detail/CVE-2026-39821) / [GO-2026-5026](https://pkg.go.dev/vuln/GO-2026-5026) <details> <summary>More information</summary> #### Details The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label. For example, ToUnicode("xn--example-.com") incorrectly returns the name "example.com" rather than an error. This behavior can lead to privilege escalation in programs using the idna package. For example, a program which performs privilege checks on the ASCII hostname may reject "example.com" but permit "xn--example-.com". If that program subsequently converts the ASCII hostname to Unicode, it will inadvertently permits access to the Unicode name "example.com". #### Severity Unknown #### References - [https://go.dev/cl/767220](https://go.dev/cl/767220) - [https://go.dev/issue/78760](https://go.dev/issue/78760) - [https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8](https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8) - [https://groups.google.com/g/golang-announce/c/94pEornpRlI](https://groups.google.com/g/golang-announce/c/94pEornpRlI) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2026-5026) and the [Go Vulnerability Database](https://github.com/golang/vulndb) ([CC-BY 4.0](https://github.com/golang/vulndb#license)). </details> --- ### Parsing an invalid SVCB or HTTPS RR can panic in golang.org/x/net/dns/dnsmessage [CVE-2026-46600](https://nvd.nist.gov/vuln/detail/CVE-2026-46600) / [GO-2026-5942](https://pkg.go.dev/vuln/GO-2026-5942) <details> <summary>More information</summary> #### Details Parsing an invalid SVCB or HTTPS RR can panic when the size of a parameter value overflows the message buffer. #### Severity Unknown #### References - [https://go.dev/cl/786345](https://go.dev/cl/786345) - [https://go.dev/issue/79795](https://go.dev/issue/79795) - [https://groups.google.com/g/golang-announce/c/94pEornpRlI](https://groups.google.com/g/golang-announce/c/94pEornpRlI) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2026-5942) and the [Go Vulnerability Database](https://github.com/golang/vulndb) ([CC-BY 4.0](https://github.com/golang/vulndb#license)). </details> --- ### Enforce maximum recursion depth in encoding/asn1 [CVE-2026-33818](https://nvd.nist.gov/vuln/detail/CVE-2026-33818) / [GO-2026-5972](https://pkg.go.dev/vuln/GO-2026-5972) <details> <summary>More information</summary> #### Details Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures. #### Severity Unknown #### References - [https://go.dev/issue/80405](https://go.dev/issue/80405) - [https://groups.google.com/g/golang-announce/c/94pEornpRlI](https://groups.google.com/g/golang-announce/c/94pEornpRlI) - [https://go.dev/cl/814980](https://go.dev/cl/814980) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2026-5972) and the [Go Vulnerability Database](https://github.com/golang/vulndb) ([CC-BY 4.0](https://github.com/golang/vulndb#license)). </details> --- ### Add recursion depth guard during decode in encoding/xml [CVE-2026-56859](https://nvd.nist.gov/vuln/detail/CVE-2026-56859) / [GO-2026-6088](https://pkg.go.dev/vuln/GO-2026-6088) <details> <summary>More information</summary> #### Details Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion. #### Severity Unknown #### References - [https://go.dev/issue/80481](https://go.dev/issue/80481) - [https://go.dev/cl/803320](https://go.dev/cl/803320) - [https://groups.google.com/g/golang-announce/c/94pEornpRlI](https://groups.google.com/g/golang-announce/c/94pEornpRlI) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2026-6088) and the [Go Vulnerability Database](https://github.com/golang/vulndb) ([CC-BY 4.0](https://github.com/golang/vulndb#license)). </details> --- ### Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http [CVE-2026-56853](https://nvd.nist.gov/vuln/detail/CVE-2026-56853) / [GO-2026-6089](https://pkg.go.dev/vuln/GO-2026-6089) <details> <summary>More information</summary> #### Details When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this. #### Severity Unknown #### References - [https://go.dev/issue/80205](https://go.dev/issue/80205) - [https://go.dev/cl/795540](https://go.dev/cl/795540) - [https://groups.google.com/g/golang-announce/c/94pEornpRlI](https://groups.google.com/g/golang-announce/c/94pEornpRlI) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2026-6089) and the [Go Vulnerability Database](https://github.com/golang/vulndb) ([CC-BY 4.0](https://github.com/golang/vulndb#license)). </details> --- ### Limit handshake messages we are willing to accept post-handshake in crypto/tls [CVE-2026-56862](https://nvd.nist.gov/vuln/detail/CVE-2026-56862) / [GO-2026-6090](https://pkg.go.dev/vuln/GO-2026-6090) <details> <summary>More information</summary> #### Details Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not. As a result, a malicious client can keep sending KeyUpdate messages to force the server to keep performing key derivation operations indefinitely. #### Severity Unknown #### References - [https://go.dev/issue/80528](https://go.dev/issue/80528) - [https://go.dev/cl/804261](https://go.dev/cl/804261) - [https://groups.google.com/g/golang-announce/c/94pEornpRlI](https://groups.google.com/g/golang-announce/c/94pEornpRlI) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2026-6090) and the [Go Vulnerability Database](https://github.com/golang/vulndb) ([CC-BY 4.0](https://github.com/golang/vulndb#license)). </details> --- ### Fix Javascript regexp context tracking in html/template [CVE-2026-56858](https://nvd.nist.gov/vuln/detail/CVE-2026-56858) / [GO-2026-6091](https://pkg.go.dev/vuln/GO-2026-6091) <details> <summary>More information</summary> #### Details Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS. #### Severity Unknown #### References - [https://go.dev/issue/80435](https://go.dev/issue/80435) - [https://go.dev/cl/807100](https://go.dev/cl/807100) - [https://groups.google.com/g/golang-announce/c/94pEornpRlI](https://groups.google.com/g/golang-announce/c/94pEornpRlI) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2026-6091) and the [Go Vulnerability Database](https://github.com/golang/vulndb) ([CC-BY 4.0](https://github.com/golang/vulndb#license)). </details> --- ### Avoid quadratic complexity in resolvePath in net/url [CVE-2026-56860](https://nvd.nist.gov/vuln/detail/CVE-2026-56860) / [GO-2026-6218](https://pkg.go.dev/vuln/GO-2026-6218) <details> <summary>More information</summary> #### Details Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead. Now, path resolution operates on a byte buffer using index-based backtracking for '..' segments, eliminating the quadratic time complexity and significantly reducing memory allocations. #### Severity Unknown #### References - [https://go.dev/cl/803681](https://go.dev/cl/803681) - [https://go.dev/issue/80494](https://go.dev/issue/80494) - [https://groups.google.com/g/golang-announce/c/94pEornpRlI](https://groups.google.com/g/golang-announce/c/94pEornpRlI) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2026-6218) and the [Go Vulnerability Database](https://github.com/golang/vulndb) ([CC-BY 4.0](https://github.com/golang/vulndb#license)). </details> --- ### Configuration 📅 **Schedule**: (UTC) - Branch creation - At any time (no schedule defined) - Automerge - At any time (no schedule defined) 🚦 **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. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate CLI](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0NC4xNC4zIiwidXBkYXRlZEluVmVyIjoiNDQuMTQuMyIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOltdfQ==-->
renovate added 1 commit 2026-08-14 01:09:30 +00:00
chore(deps): update go toolchain directive to v1.26.6 [security]
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renovate changed title from chore(deps): update go toolchain directive to v1.26.6 [security] to chore(deps): update go toolchain directive to v1.26.6 [security] - autoclosed 2026-08-14 08:08:50 +00:00
renovate closed this pull request 2026-08-14 08:08:50 +00:00

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Reference: unboundsoftware/gitlab-cleanup-handler#474