Execution with Unnecessary Privileges Affecting plugin-barman-cloud package, versions <0.12.0-r3
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-PLUGINBARMANCLOUD-16693623
- published14 May 2026
- disclosed28 May 2026
Introduced: 14 May 2026
NewCVE-2026-44477 (opens in a new tab)How to fix?
Upgrade Chainguard plugin-barman-cloud to version 0.12.0-r3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream plugin-barman-cloud package and not the plugin-barman-cloud package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
CloudNativePG is a platform designed to manage PostgreSQL databases within Kubernetes environments. Prior to 1.29.1 and 1.28.3, the CloudNativePG metrics exporter opens its PostgreSQL connection as the postgres superuser via the pod-local Unix socket, then demotes the session with SET ROLE pg_monitor. SET ROLE changes only current_user; session_user remains postgres. Any SQL expression evaluated inside the scrape session can invoke RESET ROLE to recover real superuser privileges, then use COPY ... TO PROGRAM to spawn an OS-level subprocess as the postgres user inside the primary pod. The READ ONLY transaction flag does not block this; it gates writes to database state, not external processes. This vulnerability is fixed in 1.29.1 and 1.28.3.