GHSA-29wv-cv7p-xjc2 · Severity: critical · Ecosystem: maven — GlassFish's gadget handler is vulnerable to RCE
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.
Conclusion & alert: CVE-2026-2587 is rated High Exploit Risk (64.9/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.14%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-22 | 0.15% | 0.14% | -0.02% |
| 2 | 2026-05-20 | — | 0.15% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.6 | 3.1 | CRITICAL |
|
2.8 | 6.0 | [email protected] |
GHSA-29wv-cv7p-xjc2 · Severity: critical · Ecosystem: maven — GlassFish's gadget handler is vulnerable to RCE
| URL | Tags |
|---|---|
| https://gitlab.eclipse.org/security/cve-assignment/-/issues/86 | Issue Tracking Third Party Advisory Exploit |