CVE-2026-2587
A critical Remote Code Execution (RCE) vulnerability was identified in the server-side template rendering mechanism used by the Glassfish gadget handler. The application processes .xml files and evaluates user-supplied values within a context where Expression Language (EL) “expressions” are processed without proper sanitization or escaping. By injecting expressions such as #{7*7}, the server returns 49, confirming server-side EL evaluation. This issue allows a remote attacker to fully compromise the underlying host, enabling capabilities as reading/modifying data, executing arbitrary commands, persistence, and lateral movement.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.6
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- EPSS probability
- 0.65%
- CWE
- CWE-917
- Published
- 2026-05-19
- Last modified
- 2026-05-20
Affected products
- Eclipse Foundation Eclipse Glassfish
- Eclipse Foundation Eclipse Glassfish
- Eclipse Foundation Eclipse Glassfish
Weakness type
Related vulnerabilities
- CVE-2026-65591 — n8n before 1.123.64 Sanitizer Bypass Remote Code Execution
- CVE-2026-11561 — SSTI in Soagen Informatics' Apinizer
- CVE-2026-40985 — Data Binding Vulnerability in Spring Web Flow with Unified EL Parser
- CVE-2026-41729 — Spring Data REST SpEL Injection via Map Key in JSON Patch
- CVE-2026-41719 — Spring Data KeyValue - SpEL Injection vulnerability in SpelPropertyComparator
- CVE-2026-41717 — Spring Data MongoDB - SpEL Expression Injection via Annotated Query Parameter Binding
- CVE-2026-2586 — An authenticated Remote Code Execution (RCE) vulnerability was identified in GlassFish's...
- CVE-2026-31380 — Apache OFBiz: FreeMarker SSTI via Duplicate Parameter Sanitization Bypass