Update Helm release cert-manager to v1.19.4

[vshn-renovate]

This PR contains the following updates:

Package	Update	Change
cert-manager (source)	minor	v1.18.6 → v1.19.4

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Release Notes

cert-manager/cert-manager (cert-manager)

v1.19.4

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

v1.19.4 is a simple patch release to fix some reported vulnerabilities - notably CVE-2026-24051 and CVE-2025-68121. All users should upgrade.

Changes by Kind

Bug or Regression

• Bump go to address CVE-2025-68121 (#​8526, @​SgtCoDFish)
• Bump otel SDK to address GO-2026-4394 (#​8531, @​SgtCoDFish)

v1.19.3

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

This release contains three bug fixes, including a fix for the MODERATE severity DoS issue in GHSA-gx3x-vq4p-mhhv. All users should upgrade to the latest release.

Changes by Kind

Bug or Regression

• Fixed an infinite re-issuance loop that could occur when an issuer returns a certificate with a public key that doesn't match the CSR. The issuing controller now validates the certificate before storing it and fails with backoff on mismatch. (#​8415, @​cert-manager-bot)
• Fixed an issue where HTTP-01 challenges failed when the Host header contained an IPv6 address. This means that users can now issue IP address certificates for IPv6 address subjects. (#​8436, @​cert-manager-bot)
• Security (MODERATE): Fix a potential panic in the cert-manager controller when a DNS response in an unexpected order was cached. If an attacker was able to modify DNS responses (or if they controlled the DNS server) it was possible to cause denial of service for the cert-manager controller. (#​8468, @​SgtCoDFish)

Other (Cleanup or Flake)

• Bump go to 1.25.6 (#​8459, @​SgtCoDFish)

v1.19.2

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

We updated Go to fix some vulnerabilities in the standard library.

📖 Read the full 1.19 release notes on the cert-manager.io website before upgrading.

Changes since v1.19.1

Bug or Regression

• Address false positive vulnerabilities CVE-2025-47914 and CVE-2025-58181 which were reported by Trivy. (#​8283, @​SgtCoDFish)
• Update Go to v1.25.5 to fix CVE-2025-61727 and CVE-2025-61729 (#​8294, @​wallrj-cyberark)
• Update global.nodeSelector to helm chart to perform a merge and allow for a single nodeSelector to be set across all services. (#​8233, @​cert-manager-bot)

Other (Cleanup or Flake)

• Update cert-manager's ACME client, forked from golang/x/crypto (#​8270, @​SgtCoDFish)
• Updated Debian 12 distroless base images (#​8326, @​wallrj-cyberark)

v1.19.1

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

We reverted the CRD-based API defaults for Certificate.Spec.IssuerRef and CertificateRequest.Spec.IssuerRef after they were found to cause unexpected certificate renewals after upgrading to 1.19.0. We will try re-introducing these API defaults in cert-manager 1.20.
We fixed a bug that caused certificates to be re-issued unexpectedly if the issuerRef kind or group was changed to one of the "runtime" default values.
We upgraded Go to 1.25.3 to address the following security vulnerabilities: CVE-2025-61724, CVE-2025-58187, CVE-2025-47912, CVE-2025-58183, CVE-2025-61723, CVE-2025-58186, CVE-2025-58185, CVE-2025-58188, and CVE-2025-61725.

📖 Read the full 1.19 release notes on the cert-manager.io website before upgrading.

Changes since v1.19.0:

Bug or Regression

• BUGFIX: in case kind or group in the issuerRef of a Certificate was omitted, upgrading to 1.19.x incorrectly caused the certificate to be renewed (#​8175, @​cert-manager-bot)
• Bump Go to 1.25.3 to fix a backwards incompatible change to the validation of DNS names in X.509 SAN fields which prevented the use of DNS names with a trailing dot (#​8177, @​wallrj-cyberark)
• Revert API defaults for issuer reference kind and group introduced in 0.19.0 (#​8178, @​cert-manager-bot)

v1.19.0

Compare Source

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

⚠️ Known issues: The following known issues are fixed in v1.19.1:

• Unexpected certificate renewal after upgrading to 1.19.0

This release focuses on expanding platform compatibility, improving deployment flexibility, enhancing observability, and addressing key reliability issues.

📖 Read the full release notes at cert-manager.io: https://cert-manager.io/docs/releases/release-notes/release-notes-1.19

Changes since v1.18.0:

Feature

• Add IPv6 rules to the default network policy (#​7726, @​jcpunk)
• Add global.nodeSelector to helm chart to allow for a single nodeSelector to be set across all services. (#​7818, @​StingRayZA)
• Add a feature gate to default to Ingress pathType Exact in ACME HTTP01 Ingress challenge solvers. (#​7795, @​sspreitzer)
• Add generated applyconfigurations allowing clients to make type-safe server-side apply requests for cert-manager resources. (#​7866, @​erikgb)
• Added API defaults to issuer references group (cert-manager.io) and kind (Issuer). (#​7414, @​erikgb)
• Added certmanager_certificate_challenge_status Prometheus metric. (#​7736, @​hjoshi123)
• Added protocol field for rfc2136 DNS01 provider (#​7881, @​hjoshi123)
• Added experimental field hostUsers flag to all pods. Not set by default. (#​7973, @​hjoshi123)
• Support configurable resource requests and limits for ACME HTTP01 solver pods through ClusterIssuer and Issuer specifications, allowing granular resource management that overrides global --acme-http01-solver-resource-* settings. (#​7972, @​lunarwhite)
• The CAInjectorMerging feature has been promoted to BETA and is now enabled by default (#​8017, @​ThatsMrTalbot)
• The controller, webhook and ca-injector now log their version and git commit on startup for easier debugging and support. (#​8072, @​prasad89)
• Updated certificate metrics to the collector approach. (#​7856, @​hjoshi123)

Bug or Regression

• ACME: Increased challenge authorization timeout to 2 minutes to fix error waiting for authorization (#​7796, @​hjoshi123)
• BUGFIX: permitted URI domains were incorrectly used to set the excluded URI domains in the CSR's name constraints (#​7816, @​kinolaev)
• Enforced ACME HTTP-01 solver validation to properly reject configurations when multiple ingress options (class, ingressClassName, name) are specified simultaneously (#​8021, @​lunarwhite)
• Increase maximum sizes of PEM certificates and chains which can be parsed in cert-manager, to handle leaf certificates with large numbers of DNS names or other identities (#​7961, @​SgtCoDFish)
• Reverted adding the global.rbac.disableHTTPChallengesRole Helm option. (#​7836, @​inteon)
• This change removes the path label of core ACME client metrics and will require users to update their monitoring dashboards and alerting rules if using those metrics. (#​8109, @​mladen-rusev-cyberark)
• Use the latest version of ingress-nginx in E2E tests to ensure compatibility (#​7792, @​wallrj)

Other (Cleanup or Flake)

• Helm: Fix naming template of tokenrequest RoleBinding resource to improve consistency (#​7761, @​lunarwhite)
• Improve error messages when certificates, CRLs or private keys fail admission due to malformed or missing PEM data (#​7928, @​SgtCoDFish)
• Major upgrade of Akamai SDK. NOTE: The new version has not been fully tested end-to-end due to the lack of cloud infrastructure. (#​8003, @​hjoshi123)
• Update kind images to include the Kubernetes 1.33 node image (#​7786, @​wallrj)
• Use maps.Copy for cleaner map handling (#​8092, @​quantpoet)
• Vault: Migrate Vault E2E add-on tests from deprecated vault-client-go to the new vault/api client. (#​8059, @​armagankaratosun)

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This PR has been generated by Renovate Bot.

[simu]

Renovate artifact update and golden tests fail because CRDs are rendered in individual files by the 1.19 Helm chart (Kustomize style) -- we'll need to update the postprocessing filter to handle the new file layout.

[vshn-renovate]

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