Description
Heap-based buffer overflow in PostgreSQL ts_rank_cd() may allow a database user to execute arbitrary code as the operating system user running the database, via an invalid tsvector containing duplicate positions. 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 Heap-based buffer overflow in PostgreSQL ts_rank_cd() may allow a database user to execute arbitrary code as the operating system user running the database, via an invalid tsvector containing duplicate positions. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Title PostgreSQL ts_rank_cd() heap buffer overflow may execute arbitrary code
Weaknesses CWE-122
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: 2026-11-12T14:15:09.968Z

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

Link: CVE-2026-116317

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