Type confusion in PostgreSQL plperl may allow an object creator to execute arbitrary code, via blessing a non-hash reference into PostgreSQL::InServer::ARRAY. We have not confirmed or ruled out a way to control the pointer sufficiently to achieve security impact, but we are proceeding as though that is possible. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

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Thu, 12 Nov 2026 14:30:00 +0000

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Description Type confusion in PostgreSQL plperl may allow an object creator to execute arbitrary code, via blessing a non-hash reference into PostgreSQL::InServer::ARRAY. We have not confirmed or ruled out a way to control the pointer sufficiently to achieve security impact, but we are proceeding as though that is possible. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Title PostgreSQL plperl blessed-reference type confusion may execute arbitrary code
Weaknesses CWE-843
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: PostgreSQL

Published:

Updated: 2026-11-12T14:15:05.119Z

Reserved: 2026-10-26T03:52:44.052Z

Link: CVE-2026-116309

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses