CVE-2026-120058 (GCVE-0-2026-120058)

Vulnerability from cvelistv5 – Published: 2026-11-02 19:09 – Updated: 2026-11-02 19:33
VLAI
Title
psqlODBC row cache overflow when a later FETCH changes the column count
Summary
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.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 19:33 UTC
CWE
  • CWE-787 - Out-of-bounds Write
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
PostgreSQL CNA under the redhat root
CNA scorecard C 71/100 over 122 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
PostgreSQL psqlODBC Affected: 0 , < 18.00.0006 (custom)
guessed Create a notification for this product.
Date Public
2026-11-02 00:00
Show details on NVD website

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