CVE-2026-2587
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.6epss 0.6%
from disclosure to weapon1 days
Published on NVDMay 19
1st PoC+1d
exploitation probability
0.6%top 51% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Affected products
Eclipse Foundation · Eclipse Glassfishpublic PoCs found — 1
githubgithub.com/Bhanunamikaze/CVE-2026-2587-Exploit-POC★ 1⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.