Bug 2526273

Summary: CVE-2026-6464 mingw-postgresql: PostgreSQL psql: Arbitrary command execution via untrusted data in COPY FROM STDIN [fedora-all]
Product: [Fedora] Fedora Reporter: Srikanth Balasubramanian <sbalasub>
Component: mingw-postgresqlAssignee: Michael Cronenworth <mike>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: mike
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["40db56f5-334d-4e2a-865b-8b13fe2690df"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 2515306    

Description Srikanth Balasubramanian 2026-08-31 11:48:43 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Untrusted data inclusion in PostgreSQL psql COPY may allow a server administrator to elicit execution of data lines as psql commands, via error injection.  If the "COPY FROM STDIN" or "\copy FROM STDIN" command fails before the server indicates that it awaits input rows, psql processes the in-line data rows as psql commands.  "COPY FROM" with a filename is unaffected.  The server administrator has no inherent control over the data rows, so a complete attack requires the attacker to separately acquire control of both the server and the data rows.  Alternatively, an attacker controlling data rows alone might complete an attack through a coincidental error that they don't control.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.