Bug 2565358 (CVE-2026-120059)

Summary: CVE-2026-120059 postgresql-odbc: postgresql-odbc: Information disclosure via format string in column name
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in postgresql-odbc. When processing updatable cursors, the driver improperly uses a server-provided column name as a format string when constructing query statements. A malicious database server or an attacker able to create a table with a specially crafted column name can cause the driver to read unrelated client memory. This issue can lead to information disclosure if sensitive client memory is transmitted to the server, or an application crash resulting in a Denial of Service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2566766, 2566767, 2566768    
Bug Blocks:    

Description OSIDB Bzimport 2026-11-02 19:32:51 UTC 
For an updatable cursor over a table without OIDs that has an auto-increment int4 column, psqlODBC places that column's name, as reported by the server, into a printf-style format string. It later expands that string with one argument while it builds the WHERE clause of its positioned SELECT, UPDATE, and DELETE statements. A column name that contains format directives makes the driver read unrelated memory, which can crash the application or copy client memory into query text sent to the server. The name can come from a server not trusted under current SSL settings, or from any database user who can create a table that the application reads with an updatable cursor. Versions before psqlODBC 18.00.0006 are affected.