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Fencer Vulns
medium 5.9

CVE-2026-109448 json

psqlODBC SQLBindParameter heap memory corruption when binding more than 32767 parameters

published 2026-10-12 27 d ago modified 2026-10-16 23 d ago also EUVD-2026-97731

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

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.

Patch / fix

  • PostgreSQL psqlODBC 18.00.0005
  • psqlodbc Debian 14 1:18.00.0005-1

debian advisories DEBIAN-CVE-2026-109448

  • psqlODBC openSUSE Leap 16.0 18.00.0005-bp160.1.1
  • psqlODBC openSUSE Tumbleweed 18.00.0005-1.1

opensuse advisories openSUSE-SU-2026:22122-1openSUSE-SU-2026:12135-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-109448 updated cvss 5.9

postgresql-odbc: postgresql-odbc: Denial of Service via integer wraparound in SQLBindParameter

  • Red Hat Enterprise Linux 6 postgresql-odbc 16.00.0000-5.el10
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 postgresql-odbc 16.00.0000-5.el10 Red Hat Enterprise Linux 8 postgresql-odbc-tests, postgresql-odbc 16.00.0000-5.el10 Red Hat Enterprise Linux 9 postgresql-odbc 16.00.0000-5.el10 Red Hat Enterprise Linux 10 postgresql-odbc 16.00.0000-5.el10
    affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
23 d ago

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • PostgreSQL psqlODBC

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.