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Findings

CVE-2026-109448

Integer wraparound in psqlODBC SQLBindParameter allows an application, or an attacker who controls how many parameters the application binds on one statement, to corrupt heap memor

Published Oct 12, 2026 · updated Oct 15, 2026

Integer wraparound in psqlODBC SQLBindParameter allows an application, or an attacker who controls how many parameters the application binds on one statement, to corrupt heap memory. psqlODBC stores the binding count in a signed 16-bit field. Binding parameter number 32768 wraps that count to -32768. Binding parameter 32769 then writes about 2.5 MB of zeros starting 1.25 MB before the binding array, which crashes the application or leaves it running on a corrupted heap. Applications that build parameter lists from untrusted input, such as an IN (?, ?, ...) list, are exposed. Versions before psqlODBC 18.00.0005 are affected.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 12, 2026 · OSV.dev

    Detected

    Integer wraparound in psqlODBC SQLBindParameter allows an application, or an attacker who controls how many parameters the application binds on one statement, to corrupt heap memory. psqlODBC stores the binding count in a signed 16-bit field. Binding parameter number 32768 wraps that count to -32768. Binding parameter 32769 then writes about 2.5 MB of zeros starting 1.25 MB before the binding arra

  2. Oct 15, 2026 · OSV.dev

    Fix available

    psqlodbc fixed in 1:18.00.0005-1

  3. Oct 15, 2026 · OSV.dev

    Fix available

    psqlodbc fixed in 1:18.00.0005-1

  4. Oct 15, 2026 · OSV.dev

    Updated

    Integer wraparound in psqlODBC SQLBindParameter allows an application, or an attacker who controls how many parameters the application binds on one statement, to corrupt heap memory. psqlODBC stores the binding count in a signed 16-bit field. Binding parameter number 32768 wraps that count to -32768. Binding parameter 32769 then writes about 2.5 MB of zeros starting 1.25 MB before the binding arra

Affected

  • Debian:12 psqlodbc1:13.02.0000-2, 1:15.00.0000-1, 1:16.00.0000-1
  • Debian:13 psqlodbc1:17.00.0004-2, 1:17.00.0005-1, 1:17.00.0006-1
  • Debian:14 psqlodbc0 → 1:18.00.0005-1

Sources

References