CVE-2026-2587

CRITICAL EPSS 45.5%
Published May 19, 20261mo ago · Modified Jun 17, 20261w ago
9.6 CVSS 3.1
Critical
Find Similar
Published May 19, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
9.6
Exploitability
2.8
Impact
6.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
45.5% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-917

Affected Products 1

VendorProductVersionRange
eclipseglassfish* <8.0.2

References 1

  • gitlab.eclipse.org https://gitlab.eclipse.org/security/cve-assignment/-/issues/86
    ExploitIssue TrackingThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.