CVSS 3.1
9.6 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:HCVE-2026-2587
Critical (9.6) in eclipse glassfish. EPSS 0.6% chance of exploitation in the next 30 days. Fixed in org.glassfish.main.admingui:admingui 8.0.2.
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. This issue affects Eclipse GlassFish: from 8.0.0 to 8.0.1, fixed in 8.0.2; 7.1.0, fixed in 7.1.1; from 7.0.0 to 7.0.25, fixed in 7.0.26. Impact on versions from 5.1.0 to 6.2.5 is unknown.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-31)
- CWE
- CWE-917
- Published
- Modified
- Record from
- the NVD, synced
Affected
- eclipse:glassfish
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-29wv-cv7p-xjc2 | Maven | org.glassfish.main.admingui:admingui | <8.0.2 | 8.0.2 |
| GHSA-29wv-cv7p-xjc2 | Maven | org.glassfish.jsftemplating:jsftemplating | <4.2.0 | 4.2.0 |