CVE-2026-120058
Dashboard / Vulnerabilities / CVE-2026-120058
Summary: psqlODBC row cache overflow when a later FETCH changes the column count
Details: 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.
References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/120xxx/CVE-2026-120058.json, https://github.com/postgresql-interfaces/psqlodbc/security/advisories/GHSA-6rmx-9q62-4w6m, https://nvd.nist.gov/vuln/detail/CVE-2026-120058, https://github.com/postgresql-interfaces/psqlodbc
Affected packages
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