CVE-2025-11919
The default JVM can access files and directories under /tmp/ including the $TemporaryDirectory of other users on the same cloud instance (/tmp/UserTemporaryFiles/). The -init file for the the JVM initialization exists in the vulnerable directory during the startup of the JVM. An attacker with access to the shared /tmp/ space can preemptively create or replace .jar files or directories (via the -init file) that the victim JVM will resolve first in its classpath. By strategically placing a malicious version of a commonly used library (e.g., commons-io) in a location that is included in the classpath before the legitimate version, an attacker can cause the JVM to load the malicious class during startup, thereby executing the attacker's code.
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Exploitation outlook
- Low exploitation risk0.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all EPSS-scored CVEs.
Advisory coverage (1)
External references
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