CVE-2026-44477CloudNativePG is a platform designed to manage PostgreSQL databases within Kubernetes environments.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.9 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-250, CWE-271, CWE-426
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jul 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linuxfoundation cloudnativepg linuxfoundation:cloudnativepg | before 1.28.3; from 1.29.0 before 1.29.1 | NVD |
References
- https://github.com/cloudnative-pg/cloudnative-pg/pull/10576issue-tracking, patch
- https://github.com/cloudnative-pg/cloudnative-pg/security/advisories/GHSA-423p-g724-fr39mitigation, vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-44477
- https://bugzilla.redhat.com/show_bug.cgi?id=2482763
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44477.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.