Description
Use after free in PostgreSQL coordination of anonymous RECORD type identifiers among parallel workers allows a database user to execute arbitrary code as the operating system user running the database, via causing one process to free a shared tuple descriptor while another process retains and later uses its address. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Published: 2026-11-12
Score: 8.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

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

Type Values Removed Values Added
Description Use after free in PostgreSQL coordination of anonymous RECORD type identifiers among parallel workers allows a database user to execute arbitrary code as the operating system user running the database, via causing one process to free a shared tuple descriptor while another process retains and later uses its address. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Title PostgreSQL parallel RECORD typmod use-after-free executes arbitrary code
Weaknesses CWE-416
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'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: PostgreSQL

Published:

Updated: 2026-11-12T14:15:02.654Z

Reserved: 2026-10-26T03:52:44.051Z

Link: CVE-2026-116304

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-12T15:17:38.043

Modified: 2026-11-12T15:17:38.043

Link: CVE-2026-116304

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses
  • CWE-416

    Use After Free

  • CWE-843

    Access of Resource Using Incompatible Type ('Type Confusion')