TI-2026-71234 Aliases CVE-2026-109448

Heap corruption in psqlODBC SQLBindParameter with many parameters

LOW 26CWE-124Published 2026-10-12 · Updated 2026-10-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Partial Red Hat: 5 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.

Summary

psqlODBC from 08.01.0102 before 18.00.0005 is affected. An integer wraparound in SQLBindParameter (CWE-190) occurs when the application binds parameter 32768, which corrupts heap memory. An attacker who controls how many parameters an application binds, such as through an IN list built from untrusted input, can crash the application or leave it running on a corrupted heap.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00222 12th percentileScored 2026-11-07

Fix Partial psqlODBC (PostgreSQL): 18.00.0005Red Hat: 5 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
PostgreSQL	psqlODBC	08.01.0102 to before 18.00.0005	18.00.0005	Patch available	CNA

psqlODBC VendorPostgreSQL Affected 08.01.0102 to before 18.00.0005 Fixed in 18.00.0005 Patch available CNA

Remediation

Upgrade psqlODBC to 18.00.0005, which fixes this. The sources list no fixed version for Red Hat Enterprise Linux 7, 8, 9 and 10, and no fix planned for Red Hat Enterprise Linux 6.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fix · CNA psqlODBC (PostgreSQL) Fixed in 18.00.0005

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 10	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 7	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 8	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 9	Affected	No fix yet: Fix deferred

Timeline

2026-10-12 Threatist record created from CVE-2026-109448
2026-10-13 Affected versions changed · Red Hat
2026-10-13 CVSS score added · Red Hat
2026-10-13 Priority changed: MEDIUM → LOW
2026-10-16 CISA SSVC decision points changed

References

Advisory 1

https://github.com/postgresql-interfaces/psqlodbc/security/advisories/GHSA-cmfx-rm3r-p2jr

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

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