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CVE-2021-23222 is an improper validation flaw in PostgreSQL's libpq client library. A man-in-the-middle attacker can cause libpq to process unencrypted bytes and inject false responses to the first queries of a PostgreSQL client session, even when SSL certificate verification and encryption are enabled. Exploitation can affect data sent early in the session, including credentials or other confidential information.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A PostgreSQL libpq vulnerability in which the client library can process unencrypted bytes supplied by a man-in-the-middle attacker, potentially exposing confidential information.
CVE listed as addressed by this advisory; no technical description is provided in the content.
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.