Description
Operation on a dropped index in PostgreSQL REINDEX CONCURRENTLY allows an object creator to execute arbitrary code as the operating system user running the database, via an index expression that issues DROP INDEX. 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 Operation on a dropped index in PostgreSQL REINDEX CONCURRENTLY allows an object creator to execute arbitrary code as the operating system user running the database, via an index expression that issues DROP INDEX. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Title PostgreSQL REINDEX CONCURRENTLY does not block DROP INDEX during index functions
Weaknesses CWE-672
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: 2026-11-12T14:15:20.347Z

Reserved: 2026-10-26T04:01:48.586Z

Link: CVE-2026-116336

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-12T15:17:42.167

Modified: 2026-11-12T15:17:42.167

Link: CVE-2026-116336

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses
  • CWE-672

    Operation on a Resource after Expiration or Release

  • CWE-843

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