chore(deps): update module golang.org/x/oauth2 to v0.27.0 [security]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
golang.org/x/oauth2	v0.25.0 → v0.27.0

---

golang.org/x/oauth2 Improper Validation of Syntactic Correctness of Input vulnerability

CVE-2025-22868 / GHSA-6v2p-p543-phr9

More information

Details

An attacker can pass a malicious malformed token which causes unexpected memory to be consumed during parsing.

Severity

• CVSS Score: 7.5 / 10 (High)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-22868
• https://go.dev/cl/652155
• https://go.dev/issue/71490
• https://pkg.go.dev/vuln/GO-2025-3488
• https://github.com/advisories/GHSA-6v2p-p543-phr9

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

Configuration

📅 Schedule: (in timezone Europe/London)

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

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, 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 was generated by Mend Renovate. View the repository job log.

[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact 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: go.sum

go: github.com/overmindtech/discovery@v0.33.4: reading github.com/overmindtech/discovery/go.mod at revision v0.33.4: git ls-remote -q origin in /runner/cache/others/go/pkg/mod/cache/vcs/424b9bfadc61fb6395e84c64424b51c411c5d69e32e50c06ab2051673e44b18b: exit status 128:
	remote: Repository not found.
	fatal: repository 'https://github.com/overmindtech/discovery/' not found