SUSE-SU-2025:4481-1

Description

Security update for golang-github-prometheus-alertmanager This update for golang-github-prometheus-alertmanager fixes the following issues: - Update to version 0.28.1 (jsc#PED-13285): * Improved performance of inhibition rules when using Equal labels. * Improve the documentation on escaping in UTF-8 matchers. * Update alertmanager_config_hash metric help to document the hash is not cryptographically strong. * Fix panic in amtool when using --verbose. * Fix templating of channel field for Rocket.Chat. * Fix rocketchat_configs written as rocket_configs in docs. * Fix usage for --enable-feature flag. * Trim whitespace from OpsGenie API Key. * Fix Jira project template not rendered when searching for existing issues. * Fix subtle bug in JSON/YAML encoding of inhibition rules that would cause Equal labels to be omitted. * Fix header for slack_configs in docs. * Fix weight and wrap of Microsoft Teams notifications. - Upgrade to version 0.28.0: * CVE-2025-47908: Bump github.com/rs/cors (bsc#1247748). * Templating errors in the SNS integration now return an error. * Adopt log/slog, drop go-kit/log. * Add a new Microsoft Teams integration based on Flows. * Add a new Rocket.Chat integration. * Add a new Jira integration. * Add support for GOMEMLIMIT, enable it via the feature flag --enable-feature=auto-gomemlimit. * Add support for GOMAXPROCS, enable it via the feature flag --enable-feature=auto-gomaxprocs. * Add support for limits of silences including the maximum number of active and pending silences, and the maximum size per silence (in bytes). You can use the flags --silences.max-silences and --silences.max-silence-size-bytes to set them accordingly. * Muted alerts now show whether they are suppressed or not in both the /api/v2/alerts endpoint and the Alertmanager UI. - Upgrade to version 0.27.0: * API: Removal of all api/v1/ endpoints. These endpoints now log and return a deprecation message and respond with a status code of 410. * UTF-8 Support: Introduction of support for any UTF-8 character as part of label names and matchers. * Discord Integration: Enforce max length in message. * Metrics: Introduced the experimental feature flag --enable-feature=receiver-name-in-metrics to include the receiver name. * Metrics: Introduced a new gauge named alertmanager_inhibition_rules that counts the number of configured inhibition rules. * Metrics: Introduced a new counter named alertmanager_alerts_supressed_total that tracks muted alerts, it contains a reason label to indicate the source of the mute. * Discord Integration: Introduced support for webhook_url_file. * Microsoft Teams Integration: Introduced support for webhook_url_file. * Microsoft Teams Integration: Add support for summary. * Metrics: Notification metrics now support two new values for the label reason, contextCanceled and contextDeadlineExceeded. * Email Integration: Contents of auth_password_file are now trimmed of prefixed and suffixed whitespace. * amtool: Fixes the error scheme required for webhook url when using amtool with --alertmanager.url. * Mixin: Fix AlertmanagerFailedToSendAlerts, AlertmanagerClusterFailedToSendAlerts, and AlertmanagerClusterFailedToSendAlerts to make sure they ignore the reason label.

Affected Systems

• opensuse•golang-github-prometheus-alertmanager&distro=openSUSE Leap 15.6

  < 0.28.1-150100.4.28.2

• suse•golang-github-prometheus-alertmanager&distro=SUSE Linux Enterprise Module for Package Hub 15 SP6

  < 0.28.1-150100.4.28.2

• suse•golang-github-prometheus-alertmanager&distro=SUSE Linux Enterprise Module for Package Hub 15 SP7

  < 0.28.1-150100.4.28.2

• suse•golang-github-prometheus-alertmanager&distro=SUSE Manager Client Tools 15

  < 0.28.1-150100.4.28.2

• suse•golang-github-prometheus-alertmanager&distro=SUSE Manager Proxy LTS 4.3

  < 0.28.1-150100.4.28.2

References (3)

• https://www.suse.com/support/update/announcement/2025/suse-su-20254481-1/
• https://bugzilla.suse.com/1247748
• https://www.suse.com/security/cve/CVE-2025-47908