CVE-2026-2587 Details
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.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-2587
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.15 Probability of exploitation activity being observed over the next 30 days (35th percentile)
CVSS score for CVE-2026-2587
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
9.6 Critical
Products affected by CVE-2026-2587
Glassfish 7.0.10
Glassfish 7.0.11
Glassfish 7.0.12
Glassfish 7.0.14
Glassfish 7.0.15
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2026-2587 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 15 30.00%
DE 6 12.00%
IN 4 8.00%
AU 3 6.00%
GB 3 6.00%
ES 3 6.00%
HN 2 4.00%
TR 2 4.00%
CA 1 2.00%
ET 1 2.00%

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CVE-2026-2587 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 31 77.50%
Telecommunications 4 10.00%
Education 3 7.50%
Business Services 1 2.50%
Government/Politics 1 2.50%

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