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CVE-2026-14664 is a heap-based buffer overflow in PostgreSQL regular-expression processing. Processing text that does not pass encoding validation can cause unanticipated data growth during conversion through pg_wchar, resulting in an undersized heap allocation and memory corruption. A query author can exploit the flaw to execute arbitrary code as the operating-system account running the PostgreSQL server. PostgreSQL releases before 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
25 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A PostgreSQL vulnerability referenced by the plugin; no technical vulnerability details are provided.
A PostgreSQL regexp heap-buffer-overflow vulnerability that can execute arbitrary code.
A PostgreSQL regular-expression heap buffer overflow that can execute arbitrary code.
A PostgreSQL regexp heap buffer overflow that can execute arbitrary code.
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.