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CVE-2026-15742 is an integer wraparound vulnerability in PostgreSQL's fuzzystrmatch extension. Extreme inputs to the SQL functions levenshtein() or levenshtein_less_equal() can cause arithmetic to wrap, enabling writes across an effectively arbitrary or very large memory-address range. This memory corruption can be leveraged to execute arbitrary code in the operating-system context of the PostgreSQL server process. Affected releases are PostgreSQL versions before 18.6, 17.11, 16.15, 15.19, and 14.24.
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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.
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.
27 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 fuzzystrmatch integer-wraparound flaw enabling writes to effectively arbitrary addresses.
A fuzzystrmatch integer-wraparound vulnerability enabling writes to effectively arbitrary addresses.
A PostgreSQL fuzzystrmatch integer-wraparound flaw allowing writes to effectively arbitrary addresses.
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.