Arbitrary Code Injection Affecting mtdowling/jmespath.php package, versions <2.9.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PHP-MTDOWLINGJMESPATHPHP-17337032
- published14 Jun 2026
- disclosed12 Jun 2026
- creditedorian
Introduced: 12 Jun 2026
NewCVE-2026-54133 (opens in a new tab)How to fix?
Upgrade mtdowling/jmespath.php to version 2.9.1 or higher.
Overview
Affected versions of this package are vulnerable to Arbitrary Code Injection via unescaped JMESPath handling in the CompilerRuntime. An attacker can execute PHP source code by supplying a malicious JMESPath expression, which is included in a cache file and subsequently executed. In addition to the JmesPath\CompilerRuntime vector, if JP_PHP_COMPILE is enabled, JmesPath\search() on the malicious expression string is also an exploitable vector.
Workaround
This vulnerability can be avoided by using the default AstRuntime (without JP_PHP_COMPILE) for untrusted expressions.