Bug 2439320 (CVE-2026-2007)

Summary: CVE-2026-2007 postgresql: PostgreSQL pg_trgm heap buffer overflow writes pattern onto server memory
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: unspecifiedCC: jmoroney, ljavorsk
Target Milestone: ---Keywords: Security
Target Release: ---Flags: ljavorsk: needinfo? (jmoroney)
Hardware: All   
OS: Linux   
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A heap based buffer overflow has been discovered in postgresql. This heap buffer overflow is in PostgreSQL pg_trgm allows a database user to achieve unknown impacts via a crafted input string. The attacker has limited control over the byte patterns to be written, but we have not ruled out the viability of attacks that lead to privilege escalation.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2439441    
Bug Blocks:    

Description OSIDB Bzimport 2026-02-12 14:01:39 UTC 
Heap buffer overflow in PostgreSQL pg_trgm allows a database user to achieve unknown impacts via a crafted input string.  The attacker has limited control over the byte patterns to be written, but we have not ruled out the viability of attacks that lead to privilege escalation.  PostgreSQL 18.1 and 18.0 are affected.