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    6 vulnerabilities by cloudnative-pg

    CVE-2026-55769 (GCVE-0-2026-55769)

    Vulnerability from nvd – Published: 2026-08-20 21:41 – Updated: 2026-08-21 11:20
    VLAI
    Title
    CloudNativePG: Overriding operators can lead to privilege escalation in CloudNativePG for SQL queries without a fixed `search_path`
    Summary
    CloudNativePG is a platform designed to manage PostgreSQL databases within Kubernetes environments. Prior to 1.28.4 and 1.29.2, CloudNativePG opened superuser connections without pinning search_path in fillDefaultParameters in pkg/management/postgres/pool/profiles.go. A role holding DATABASE OWNER could create overloaded built-in operators in the public schema and change the database or role search_path, causing instance-manager introspection queries such as SELECT COUNT(*) > 0 FROM pg_catalog.pg_extension WHERE extname = $1 to execute attacker-controlled functions as the postgres superuser. The same trust issue affected direct sql.Open("pgx", ...) callsites and the public.user_search SECURITY DEFINER function, enabling PostgreSQL superuser access, operating system command execution through COPY ... FROM PROGRAM, and access to the pod ServiceAccount token. This issue is fixed in versions 1.28.4, 1.29.2, and 1.30.0.
    Severity
    9.4 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-21 11:20 UTC
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    cloudnative-pg cloudnative-pg Affected: < 1.28.4
    Affected: >= 1.29.0, < 1.29.2
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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        ],
        "title": "CISA ADP Vulnrichment"
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      "title": "CloudNativePG: Overriding operators can lead to privilege escalation in CloudNativePG for SQL queries without a fixed `search_path`"
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    CVE-2026-55765 (GCVE-0-2026-55765)

    Vulnerability from nvd – Published: 2026-08-20 21:38 – Updated: 2026-08-25 15:29
    VLAI
    Title
    CloudNativePG: Cleartext role passwords recorded in pg_stat_statements allow privileged tenant roles to recover the PostgreSQL superuser credential and achieve RCE in the database pod
    Summary
    CloudNativePG is a platform designed to manage PostgreSQL databases within Kubernetes environments. Prior to 1.28.4 and 1.29.2, CloudNativePG embedded cleartext role passwords in `ALTER ROLE` and `CREATE ROLE` statements generated by SetUserPassword in pkg/management/postgres/utils/roles.go and appendPasswordOption in internal/management/controller/roles/postgres.go. When pg_stat_statements was preloaded with track_utility enabled and an untrusted tenant held pg_monitor or pg_read_all_stats, the tenant could recover platform-managed superuser or application-owner passwords, reconnect through enabled superuser TCP access, and execute operating system commands in the database pod with `COPY ... FROM PROGRAM`. Clusters using SCRAM-SHA-256 verifiers in managed-role Secrets were not affected. This issue is fixed in versions 1.28.4, 1.29.2, and 1.30.0.
    Severity
    8.5 (High)
    CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-25 15:29 UTC
    CWE
    • CWE-256 - Plaintext Storage of a Password
    • CWE-522 - Insufficiently Protected Credentials
    Assigner
    References
    Impacted products
    Vendor Product Version
    cloudnative-pg cloudnative-pg Affected: < 1.28.4
    Affected: >= 1.29.0, < 1.29.2
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
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    CVE-2026-44477 (GCVE-0-2026-44477)

    Vulnerability from nvd – Published: 2026-05-28 15:46 – Updated: 2026-07-15 00:54
    VLAI
    Title
    CloudNativePG: Metrics exporter allows privilege escalation to PostgreSQL superuser and OS RCE
    Summary
    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.
    Severity
    9.4 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
    8.8 (High)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-28 17:28 UTC
    CWE
    • CWE-250 - Execution with Unnecessary Privileges
    • CWE-271 - Privilege Dropping / Lowering Errors
    • CWE-426 - Untrusted Search Path
    Assigner
    References
    Impacted products
    Vendor Product Version
    cloudnative-pg cloudnative-pg Affected: < 1.28.3
    Affected: >= 1.29.0, < 1.29.1
    		Create a notification for this product.
    Red Hat Red Hat Openshift Data Foundation 4     cpe:/a:redhat:openshift_data_foundation:4
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-55769 (GCVE-0-2026-55769)

    Vulnerability from cvelistv5 – Published: 2026-08-20 21:41 – Updated: 2026-08-21 11:20
    VLAI
    Title
    CloudNativePG: Overriding operators can lead to privilege escalation in CloudNativePG for SQL queries without a fixed `search_path`
    Summary
    CloudNativePG is a platform designed to manage PostgreSQL databases within Kubernetes environments. Prior to 1.28.4 and 1.29.2, CloudNativePG opened superuser connections without pinning search_path in fillDefaultParameters in pkg/management/postgres/pool/profiles.go. A role holding DATABASE OWNER could create overloaded built-in operators in the public schema and change the database or role search_path, causing instance-manager introspection queries such as SELECT COUNT(*) > 0 FROM pg_catalog.pg_extension WHERE extname = $1 to execute attacker-controlled functions as the postgres superuser. The same trust issue affected direct sql.Open("pgx", ...) callsites and the public.user_search SECURITY DEFINER function, enabling PostgreSQL superuser access, operating system command execution through COPY ... FROM PROGRAM, and access to the pod ServiceAccount token. This issue is fixed in versions 1.28.4, 1.29.2, and 1.30.0.
    Severity
    9.4 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-21 11:20 UTC
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    cloudnative-pg cloudnative-pg Affected: < 1.28.4
    Affected: >= 1.29.0, < 1.29.2
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-55765 (GCVE-0-2026-55765)

    Vulnerability from cvelistv5 – Published: 2026-08-20 21:38 – Updated: 2026-08-25 15:29
    VLAI
    Title
    CloudNativePG: Cleartext role passwords recorded in pg_stat_statements allow privileged tenant roles to recover the PostgreSQL superuser credential and achieve RCE in the database pod
    Summary
    CloudNativePG is a platform designed to manage PostgreSQL databases within Kubernetes environments. Prior to 1.28.4 and 1.29.2, CloudNativePG embedded cleartext role passwords in `ALTER ROLE` and `CREATE ROLE` statements generated by SetUserPassword in pkg/management/postgres/utils/roles.go and appendPasswordOption in internal/management/controller/roles/postgres.go. When pg_stat_statements was preloaded with track_utility enabled and an untrusted tenant held pg_monitor or pg_read_all_stats, the tenant could recover platform-managed superuser or application-owner passwords, reconnect through enabled superuser TCP access, and execute operating system commands in the database pod with `COPY ... FROM PROGRAM`. Clusters using SCRAM-SHA-256 verifiers in managed-role Secrets were not affected. This issue is fixed in versions 1.28.4, 1.29.2, and 1.30.0.
    Severity
    8.5 (High)
    CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-25 15:29 UTC
    CWE
    • CWE-256 - Plaintext Storage of a Password
    • CWE-522 - Insufficiently Protected Credentials
    Assigner
    References
    Impacted products
    Vendor Product Version
    cloudnative-pg cloudnative-pg Affected: < 1.28.4
    Affected: >= 1.29.0, < 1.29.2
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-44477 (GCVE-0-2026-44477)

    Vulnerability from cvelistv5 – Published: 2026-05-28 15:46 – Updated: 2026-07-15 00:54
    VLAI
    Title
    CloudNativePG: Metrics exporter allows privilege escalation to PostgreSQL superuser and OS RCE
    Summary
    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.
    Severity
    9.4 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
    8.8 (High)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-28 17:28 UTC
    CWE
    • CWE-250 - Execution with Unnecessary Privileges
    • CWE-271 - Privilege Dropping / Lowering Errors
    • CWE-426 - Untrusted Search Path
    Assigner
    References
    Impacted products
    Vendor Product Version
    cloudnative-pg cloudnative-pg Affected: < 1.28.3
    Affected: >= 1.29.0, < 1.29.1
    		Create a notification for this product.
    Red Hat Red Hat Openshift Data Foundation 4     cpe:/a:redhat:openshift_data_foundation:4
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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