Review reviewCritical

CVE-2026-2586

Eclipse Foundation Eclipse Glassfish, glassfish

An authenticated Remote Code Execution (RCE) vulnerability was identified in GlassFish's Administration Console. A user with access to the panel can send crafted requests that allow the execution of arbitrary operating system commands with the privileges of the application service user. 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: 9.1
EPSS: 0.84%
CISA KEV: Not listed
Published: 2026.05.20

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.84%

Technical severityCVSS 9.1

Vulnerability overview

Affected product and versions

Product: Eclipse Foundation Eclipse Glassfish, glassfish
Affected versions: >= 7.0.0 < 7.0.26, >= 7.1.0 < 7.1.1, >= 8.0.0 < 8.0.2, < 8.0.2
Fixed versions: 8.0.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Eclipse Foundation Eclipse Glassfish, glassfish and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE: CWE-917, CWE-94