Bug 2572571 (CVE-2026-120153)

Summary: CVE-2026-120153 postgresql: postgresql: arbitrary code execution via SQL injection in extension-script substitutions
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in PostgreSQL. An authenticated user with database-level CREATE privileges can execute arbitrary code as the administrative superuser through a Structured Query Language (SQL) injection vulnerability in extension-script substitutions. By supplying a crafted schema or owner name containing newlines or special characters to an affected extension script, an attacker can manipulate script execution to achieve privilege escalation.
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Description OSIDB Bzimport 2026-11-12 14:34:09 UTC 
SQL injection in PostgreSQL extension-script substitutions allows an attacker with database-level CREATE privilege to execute arbitrary code as the bootstrap superuser, via a schema or owner name containing newlines or other special substrings.  This is similar to CVE-2023-39417, but it requires a non-bundled extension with a vulnerable script pattern.  Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.