chore(deps): bump github.com/cert-manager/cert-manager from 1.19.5 to 1.19.6

[dependabot]

Bumps github.com/cert-manager/cert-manager from 1.19.5 to 1.19.6.

Release notes

Sourced from github.com/cert-manager/cert-manager's releases.

v1.19.6

cert-manager is the easiest way to automatically manage certificates in Kubernetes and OpenShift clusters.

This patch release fixes a security issue (GHSA-8rvj-mm4h-c258, HIGH) where the default cert-manager-edit aggregate ClusterRole granted namespace users permission to create ACME Challenge and Order resources directly. A user who could create a Challenge referencing a ClusterIssuer could supply attacker-controlled solver configuration while cert-manager loaded credentials from the ClusterIssuer's namespace, bypassing Issuer solver selectors (dnsZones, dnsNames, matchLabels). With the acme-dns provider specifically, this could disclose DNS credentials to an attacker-controlled endpoint.

This release also includes Go version bumps to address reported CVEs. All users should upgrade.

[!WARNING] Potentially breaking change: The cert-manager-edit aggregate ClusterRole no longer grants create for challenges.acme.cert-manager.io or create, patch, update for orders.acme.cert-manager.io. These resources are internal to cert-manager's ACME workflow and are not intended to be created or modified directly by users. If you have tooling or workflows that create Challenge or Order resources directly (outside of the normal Certificate → CertificateRequest → Order → Challenge flow), you will need to grant those permissions explicitly.

Changes by Kind

Bug or Regression

• Security (HIGH): Remove Challenge create and Order create, patch, update verbs from the cert-manager-edit aggregate ClusterRole (GHSA-8rvj-mm4h-c258). (#8941, @​wallrj-cyberark)

Other (Cleanup or Flake)

• Update Go to v1.25.11 to fix CVE-2026-27145, CVE-2026-42504, and CVE-2026-42507 (#8925, @​wallrj-cyberark)
• Upgrade Go to 1.25.10 to fix reported vulnerabilities, along with other dependency bumps (#8788, @​SgtCoDFish)

Commits

• 60b0447 Merge pull request #8944 from cert-manager-bot/cherry-pick-8857-to-release-1.19
• 7901d42 build-on-tag: let's store GCB logs in a bucket
• fe38cfb Merge pull request #8943 from cert-manager-bot/cherry-pick-8851-to-release-1.19
• c989ae0 Merge pull request #8941 from wallrj-cyberark/restrict-edit-clusterrole-rbac-...
• c048cad build-on-tag now requires a logging option
• b37dbf0 Restrict Challenge and Order verbs in aggregate edit ClusterRole
• 9562155 Merge pull request #8925 from wallrj-cyberark/update-go-1.25.11-release-1.19
• 1720821 [release-1.19] Update Go to v1.25.11
• ecdac75 Merge pull request #8907 from cert-manager/renovate/release-1.19-base-images
• c776c75 chore(deps): update base images
• Additional commits viewable in compare view

[vdemeester]

/retest

[vdemeester]

/lgtm

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