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CVE-2026-6464 is an untrusted-data inclusion vulnerability in PostgreSQL psql COPY processing. When a COPY FROM STDIN or \copy FROM STDIN command fails before the server reports that it is ready to receive input rows, psql can misinterpret subsequent inline COPY data rows as psql commands rather than COPY data. A malicious or compromised PostgreSQL server administrator can inject the early error condition and thereby cause attacker-controlled data lines to be processed as psql commands. COPY FROM operations that specify a filename are not affected. PostgreSQL versions earlier than 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
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28 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A PostgreSQL psql arbitrary-command-execution vulnerability caused by untrusted data in COPY FROM STDIN.
A PostgreSQL vulnerability referenced by the plugin; no technical vulnerability details are provided.
A PostgreSQL psql flaw in which COPY FROM STDIN early-failure handling can process input data lines as psql commands.
A PostgreSQL psql flaw where early COPY FROM STDIN failure causes input data lines to be processed as psql commands.
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.