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TI-2026-83949 Aliases CVE-2026-120064GHSA-vxfm-r3mv-m2fh

Out-of-bounds access in psqlODBC via unchecked column and row numbers

Priority LOW 35CWE-129Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-129 and the CVSS impact.

Summary

Several psqlODBC entry points use an application-supplied column number or row index as an array index without validating it (CWE-129). An attacker with low privileges and network access can cause out-of-bounds reads and writes in an application that forwards untrusted column or row numbers. Versions before 18.00.0006 are affected.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

Several psqlODBC entry points use an application-supplied column number or row index as an array index without validating it. SQLBindCol with a column number above 32767 wraps the binding count negative and a later copy runs off the array. A negative SQL_DESC_COUNT on an application row descriptor unbinds columns at negative indexes. SQLColAttribute with a very large column number uses a negative index. SQLSetPos(SQL_ADD) does not check the row number against the rowset size. An application that forwards untrusted column or row numbers exposes its process to out-of-bounds reads and writes. Versions before psqlODBC 18.00.0006 are affected.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00342 27th percentileScored 2026-11-07
Fix Fixed psqlODBC (PostgreSQL): 18.00.0006

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
PostgreSQLpsqlODBCbefore 18.00.000618.00.0006Patch availableCNA
  • psqlODBC VendorPostgreSQL Affected before 18.00.0006 Fixed in 18.00.0006 Patch available CNA

Remediation

Upgrade psqlODBC to version 18.00.0006, which is the fixed version listed for this flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA psqlODBC (PostgreSQL) Fixed in 18.00.0006

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    PostgreSQL psqlODBC 18.00.0006

    11 records Highest priority Priority LOW 11 LOW

    Other records, highest priority first

    • TI-2026-83947 SQL injection in psqlODBC SQLSpecialColumns table and schema namesPriority LOW 35
    • TI-2026-83946 Stack buffer overflow in psqlODBC ODBC escape parserPriority LOW 35
    • TI-2026-83943 Heap buffer overflow in psqlODBC row cache on later FETCHPriority LOW 34
    Show all 11 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-11-02 Threatist record created from CVE-2026-120064
  2. 2026-11-02 CISA SSVC decision points changed
  3. 2026-11-02 Priority changed: MEDIUM → LOW
  4. 2026-11-02 Alias added: GHSA-vxfm-r3mv-m2fh
  5. 2026-11-06 Affected versions changed · Red Hat
  6. 2026-11-06 CVSS score added · Red Hat

References

Advisory 1

  • TI-2024-01491 pgjdbc SQL Injection via line comment generation CVSS 3.1CRITICAL 10.0
  • TI-2019-06651 In PostgreSQL 9.3 through 11.2, the "COPY TO/FROM PROGRAM" function allows superusers and… CVSS 3.0HIGH 7.2
  • TI-2017-05187 Improper authentication in postgresql CVSS 3.0CRITICAL 9.8
  • TI-2022-06097 Unchecked Class Instantiation when providing Plugin Classes CVSS 3.1CRITICAL 9.8
  • TI-2022-13237 SQL Injection in ResultSet.refreshRow() with malicious column names in pgjdbc CVSS 3.1HIGH 8.0
  • TI-2020-15711 SQL injection in postgresql CVSS 3.1HIGH 8.8
See all 228 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences