CVE-2026-55769
- Source
- https://cve.org/CVERecord?id=CVE-2026-55769
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55769.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-55769
- Aliases
-
- GHSA-x8c2-3p4r-v9r6
- Downstream
- Related
- Published
- 2026-08-20T21:41:51.369Z
- Modified
- 2026-08-22T03:58:07.383695270Z
- Severity
-
- 9.4 (Critical) CVSS_V4 - 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 CVSS Calculator
- Summary
- CloudNativePG: Overriding operators can lead to privilege escalation in CloudNativePG for SQL queries without a fixed `search_path`
- Details
-
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 searchpath 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 searchpath, causing instance-manager introspection queries such as SELECT COUNT(*) > 0 FROM pgcatalog.pgextension 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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-426" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55769.json" }- References
-
- https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.28.4
- https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.29.2
- https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.30.0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55769.json
- https://github.com/cloudnative-pg/cloudnative-pg/security/advisories/GHSA-x8c2-3p4r-v9r6
- https://nvd.nist.gov/vuln/detail/CVE-2026-55769
- https://github.com/cloudnative-pg/cloudnative-pg/commit/02b5c6289b7609dc87fcb1ae9c113160e3d43308
- https://github.com/cloudnative-pg/cloudnative-pg/commit/db38f4d80315c8f1b21bf511ef0f28871820c14d
- https://github.com/cloudnative-pg/cloudnative-pg/commit/e0e2d53adbd907a61f583b1431904b5969f3fd22
- https://github.com/cloudnative-pg/cloudnative-pg/pull/10774
Affected packages
Git / github.com/cloudnative-pg/cloudnative-pg
Affected ranges
- Type
- GIT
- Repo
- https://github.com/cloudnative-pg/cloudnative-pg
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedIntroducedFixedFixedFixedFixedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "0" }, { "fixed": "1.28.4" }, { "introduced": "1.29.0" }, { "fixed": "1.29.2" } ], "source": [ "AFFECTED_FIELD", "REFERENCES" ] }