{"id":"CVE-2026-2587","title":"A critical Remote Code Execution (RCE) vulnerability was identified in the server-side template rendering mechanism used by the Glassfish gadget handler","summary":"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 co…","severity":"critical","cvss":9.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","cwe":["CWE-917"],"published":"2026-05-19","updated":"2026-06-29","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-2587","references":[{"url":"https://gitlab.eclipse.org/security/cve-assignment/-/issues/86","label":"emo@eclipse.org"}],"tags":["nvd","exploit-available"],"epss":0.00646,"epssPercentile":0.49191,"ingestedAt":"2026-06-29T13:42:11.957Z","exploits":{"github":1,"githubRepos":["https://github.com/Bhanunamikaze/CVE-2026-2587-Exploit-POC"],"checkedAt":"2026-09-21T15:28:33.945Z"},"exploitAvailable":true,"slug":"CVE-2026-2587","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":65,"depthScoreParts":{"impact":52.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":5042,"id":"CVE-2026-2587","ts":1788887230234,"field":"exploit_available","old":"false","new":"true"},{"seq":3925,"id":"CVE-2026-2587","ts":1788886360957,"field":"exploit_available","old":"true","new":"false"},{"seq":2747,"id":"CVE-2026-2587","ts":1788883027741,"field":"exploit_available","old":"false","new":"true"},{"seq":1776,"id":"CVE-2026-2587","ts":1788882430739,"field":"exploit_available","old":"true","new":"false"},{"seq":882,"id":"CVE-2026-2587","ts":1788881863998,"field":"exploit_available","old":"false","new":"true"}]}