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CVE-2026-2004 is an arbitrary code execution vulnerability in PostgreSQL's intarray extension. The flaw is caused by missing validation of the input type in the extension's selectivity estimator function. An attacker with the ability to create database objects can supply crafted input that reaches the vulnerable estimator logic and trigger execution of arbitrary code in the PostgreSQL server process. The code executes with the privileges of the operating system account running the database server. Affected versions are PostgreSQL 14 through 18 before 14.21, 15.16, 16.12, 17.8, and 18.2.
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No public exploit code observed for this vulnerability.
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28 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability in PostgreSQL addressed indirectly through upgraded third-party components in Tenable Security Center.
A PostgreSQL vulnerability addressed by F5 in BIG-IP Next for Kubernetes; specific technical details are not provided in the content.
An arbitrary code execution vulnerability in PostgreSQL’s intarray extension caused by missing input type validation in the selectivity estimator function.
Arbitrary code execution vulnerability in PostgreSQL's intarray extension selectivity estimator due to missing input type validation, allowing an object creator to execute code as the OS user running the database.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.