openSUSE-SU-2026:22027-1

This update for golang-github-prometheus-alertmanager fixes the following issues:

Changes in golang-github-prometheus-alertmanager:

• CVE-2026-39821: Fix validation bypass and privilege escalation by updating golang.org/x/net to version 0.57.0 (bsc#1266615)

• Update to version 0.33.1 (jsc#PED-16708):

  • [BUGFIX] silences: fix silences snapshot missing legacy matchers field. This caused a bug that prevented older alertmanager versions from reading newer snapshots unnecessarily.
  • [BUGFIX] silence with no matchers should populate an empty array in API response

• Update to version 0.33.0:

  • The '--enable-feature=auto-gomaxprocs' option has been removed.
  • Add a new Microsoft Teams integration that supports adaptive cards.
  • Add support for AWS Signature V4 to call AWS services that require authentication.
  • Add support for Google Chat as a notification channel.
  • Add support for custom payloads in webhooks.

• Update to version 0.32.2:

  • [BUGFIX] Fix dispatcher goroutine leaks on destroyed alertgroup swap.

• Update to version 0.32.1:

  • [BUGFIX] dispatcher: Fix issue with dispatching to a contended route.

• Update to version 0.32.0:

  • Reduce memory allocations through pre-sizing collections and batch allocation.
  • CVE-2026-2303: Removed indirect dep on vulnerable mongodb driver (bsc#1269834)

• Update to version 0.31.1:

  • No user-visible changes

• Update to version 0.31.0:

  • Add full payload templating support for webhook notifier.
  • Add support for UTF-8 label names in UI matchers.
  • Fix escaping for matcher values with quotes in the UI.

• Update to version 0.30.1:

  • [BUGFIX] Fix memory leak in tracing client.

• Update to version 0.30.0:

  • Add Mattermost integration.
  • Add support for Slack apps.
  • Add distributed tracing support.
  • Add names to inhibition rules.
  • Add templating functions for working with URLs and JSON.
  • Allow persistent peer names in a cluster.

• Update to version 0.29.0:

  • Add incident.io notifier.
  • Add monospace message formatting.
  • Update Jira notifier to support both Jira cloud API v3 and Jira datacenter API v2.