Bug 2526211

Summary: CVE-2026-14670 postgresql18: PostgreSQL: Arbitrary code execution via plperl tied hash heap buffer overflow [fedora-all]
Product: [Fedora] Fedora Reporter: Srikanth Balasubramanian <sbalasub>
Component: postgresql18Assignee: Filip Januš <fjanus>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: db-sig, fjanus, ndavidov
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["591f289e-eca2-4de3-9d6a-5571e44ad919"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:    
Bug Blocks: 2515325    

Description Srikanth Balasubramanian 2026-08-31 09:20:11 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Heap buffer overflow in PostgreSQL plperl return of a tied hash allows the function owner to execute arbitrary code as the operating system user running the database, via a crafted function body.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.