CVE-2026-44477

Katalog CVE

CVSS 9.9 · Critical EPSS 0,52%

Kerentanan Execution with Unnecessary Privileges pada linuxfoundation cloudnativepg. Skor CVSS 3.1 9.9 (Critical) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

28 Mei 2026

Terakhir diubah

15 Juli 2026

Status NVD

Modified

CVSS 3.1

9.9 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-250: Execution with Unnecessary Privileges
CWE-271: Privilege Dropping / Lowering Errors
CWE-426: Untrusted Search Path

EPSS (30 hari)

0,52% peluang dieksploitasi; lebih tinggi dari 42,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/cloudnative-pg/cloudnative-pg/security/advisories/GHSA-423p-g724-fr39 mitigasi · advisory vendor
• https://github.com/cloudnative-pg/cloudnative-pg/pull/10576 issue tracking · patch
• 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