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92e42f4e61
This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [go](https://go.dev/) ([source](https://github.com/golang/go)) | toolchain | patch | `1.26.3` → `1.26.4` | --- ### Inefficient candidate hostname parsing in crypto/x509 [CVE-2026-27145](https://nvd.nist.gov/vuln/detail/CVE-2026-27145) / [GO-2026-5037](https://pkg.go.dev/vuln/GO-2026-5037) <details> <summary>More information</summary> #### Details (*x509.Certificate).VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name (SAN) entries. This caused strings.Split(host, ".") to execute repeatedly on the same input hostname. With a large DNS SAN list, verification costs scaled quadratically based on the number of SAN entries multiplied by the hostname's label count. Because x509.Verify validates hostnames before building the certificate chain, this overhead occurred even for untrusted certificates. #### Severity Unknown #### References - [https://go.dev/cl/783621](https://go.dev/cl/783621) - [https://go.dev/issue/79694](https://go.dev/issue/79694) - [https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw](https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2026-5037) and the [Go Vulnerability Database](https://github.com/golang/vulndb) ([CC-BY 4.0](https://github.com/golang/vulndb#license)). </details> --- ### Quadratic complexity in WordDecoder.DecodeHeader in mime [CVE-2026-42504](https://nvd.nist.gov/vuln/detail/CVE-2026-42504) / [GO-2026-5038](https://pkg.go.dev/vuln/GO-2026-5038) <details> <summary>More information</summary> #### Details Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive CPU. #### Severity Unknown #### References - [https://go.dev/issue/79217](https://go.dev/issue/79217) - [https://go.dev/cl/774481](https://go.dev/cl/774481) - [https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw](https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2026-5038) and the [Go Vulnerability Database](https://github.com/golang/vulndb) ([CC-BY 4.0](https://github.com/golang/vulndb#license)). </details> --- ### Arbitrary inputs are included in errors without any escaping in net/textproto [CVE-2026-42507](https://nvd.nist.gov/vuln/detail/CVE-2026-42507) / [GO-2026-5039](https://pkg.go.dev/vuln/GO-2026-5039) <details> <summary>More information</summary> #### Details When returning errors, functions in the net/textproto package would include its input as part of the error. This might allow an attacker to inject misleading content to errors that are printed or logged. #### Severity Unknown #### References - [https://go.dev/issue/79346](https://go.dev/issue/79346) - [https://go.dev/cl/777060](https://go.dev/cl/777060) - [https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw](https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2026-5039) 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 - "" - 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](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4yMDIuMSIsInVwZGF0ZWRJblZlciI6IjQzLjIwMi4xIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbXX0=--> Reviewed-on: #175 Co-authored-by: Renovate Bot <renovate@unbound.se> Co-committed-by: Renovate Bot <renovate@unbound.se>