CVE-2026-17595
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk21th percentile - higher than 21% of all known CVEs
Summary
Nexus Repository 3 did not fully sandbox JEXL expressions used in Content Selectors. An account with nexus:selectors:create permission could construct an expression that read Java object properties not intended to be exposed, disclosing internal JVM class metadata such as class and classloader names. This does not allow method invocation, object construction, or arbitrary code execution. Fixed by restricting property access in the JEXL sandbox.
Risk Assessment
The risk includes disclosure of internal JVM environment information, which could aid an attacker in further attacks. It does not allow direct code execution but may compromise confidentiality.
Recommendation
It is recommended to update to a patched version and to restrict nexus:selectors:create permissions to trusted users. Also, regularly review created content selectors.
Original NVD description (English source)
Nexus Repository 3 did not fully sandbox JEXL expressions used in Content Selectors. An account holding the nexus:selectors:create permission could construct an expression that read Java object properties not intended to be exposed to the expression engine, disclosing internal JVM class metadata such as class and classloader names. This issue does not permit method invocation, object construction, or arbitrary code execution. This has been fixed by restricting property access in the JEXL sandbox to the intended data types.