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v1.21.4

Fictionarry/TalkingGaussianv1.21.4Mar 5, 2026by hc-github-team-es-release-engineering

AI Summary

A security-focused release for Vault featuring CVE resolutions, a Go version bump, and significant bug fixes for enterprise PKI and certificate issuance protocols.

Key Highlights

  • Upgraded Go version to 1.25.7
  • Resolved multiple security vulnerabilities (CVE-2026-1229, GO-2026-4503)
  • Enhanced PKI support for SCEP, EST, and CMPv2 on performance standby nodes

Breaking Changes

  • Removed ability to bulk delete secrets engines from the list view

New Features

  • Enhanced sys/seal-backend-status with more information
  • KMIP requests now obey configured best_effort_wal_wait_duration
  • PKI endpoints now support glob-style DNS names in alt_names

Full Release Notes

SECURITY:

* Upgrade `cloudflare/circl` to v1.6.3 to resolve CVE-2026-1229
* Upgrade `filippo.io/edwards25519` to v1.1.1 to resolve GO-2026-4503
* vault/sdk: Upgrade `cloudflare/circl` to v1.6.3 to resolve CVE-2026-1229
* vault/sdk: Upgrade `go.opentelemetry.io/otel/sdk` to v1.40.0 to resolve GO-2026-4394

CHANGES:

* core: Bump Go version to 1.25.7
* mfa/duo: Upgrade duo_api_golang client to 0.2.0 to include the new Duo certificate authorities
* ui: Remove ability to bulk delete secrets engines from the list view.

IMPROVEMENTS:

* core/seal: Enhance sys/seal-backend-status to provide more information about seal backends.
* secrets/kmip (Enterprise): Obey configured best_effort_wal_wait_duration when forwarding kmip requests.
* secrets/pki (enterprise): Return the POSTPKIOperation capability within SCEP GetCACaps endpoint for better legacy client support.

BUG FIXES:

* core (enterprise): Buffer the POST body on binary paths to allow re-reading on non-logical forwarding attempts. Addresses an issue for SCEP, EST and CMPv2 certificate issuances with slow replication of entities
* core/identity (enterprise): Fix excessive logging when updating existing aliases
* core/managed-keys (enterprise): client credentials should not be required when using Azure Managed Identities in managed keys.
* plugins (enterprise): Fix bug where requests to external plugins that modify storage weren't populating the X-Vault-Index response header.
* secrets (pki): Allow issuance of certificates without the server_flag key usage from SCEP, EST and CMPV2 protocols.
* secrets/pki (enterprise): Address cache invalidation issues with CMPv2 on performance standby nodes.
* secrets/pki (enterprise): Address issues using SCEP on performance standby nodes failing due to configuration invalidation issues along with errors writing to storage
* secrets/pki (enterprise): Modify the SCEP GetCACaps endpoint to dynamically reflect the configured encryption and digest algorithms.
* secrets/pki: The root/sign-intermediate endpoint should not fail when provided a CSR with a basic constraint extension containing isCa set to true
* secrets/pki: allow glob-style DNS names in alt_names.