Bug 2439324 (CVE-2026-2006)

Summary: CVE-2026-2006 postgresql: PostgreSQL missing validation of multibyte character length executes arbitrary code
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun. That suffices to execute arbitrary code as the operating system user running the database.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2439451, 2439452, 2439453, 2439454, 2439455, 2439456, 2439457    
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Description OSIDB Bzimport 2026-02-12 14:01:50 UTC
Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun.  That suffices to execute arbitrary code as the operating system user running the database.  Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.