Bug 2566053 (CVE-2026-121262)

Summary: CVE-2026-121262 phpmyadmin/sql-parser: phpMyAdmin SQL-Parser: Denial of Service via improper type conversion
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in phpMyAdmin's SQL parser. An improper type conversion vulnerability exists in the EXPLAIN statement parser when processing specific token arguments. A remote attacker can exploit this flaw by submitting a specially crafted SQL query, leading to an unhandled exception and causing a Denial of Service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-11-03 18:05:23 UTC 
A vulnerability was found in phpMyAdmin SQL-Parser 6.0.0/6.0.1. The affected element is the function parse of the file src/Statements/ExplainStatement.php. Performing a manipulation of the argument nextToken results in incorrect type conversion. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.