CVE-2026-120058
psqlODBC sizes its row cache from the column count of a cursor's first result, but recomputes the column count from each later FETCH reply w
CVSS
7.5
High
EPSS
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KEV
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Exploit Today
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0-100
Published: Nov 2, 2026 · Last modified: Nov 2, 2026 · CWE-191 · CWE-787
Not enough EPSS history yet.
psqlODBC sizes its row cache from the column count of a cursor's first result, but recomputes the column count from each later FETCH reply without checking that it matches. A server not trusted under current SSL settings can answer a later FETCH with more columns and make the driver write tuple records past the end of the heap allocation. A keyset reply with fewer columns than the key fields also underflows the unsigned field count. This is reachable with UseDeclareFetch enabled. Versions before psqlODBC 18.00.0006 are affected.
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-1197395.3 MED—
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