Expression language injection in Eclipse Glassfish
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-917.
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 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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Eclipse Foundation | Eclipse Glassfish | 7.0.0 to before 7.0.26; 7.1.0 to before 7.1.1; 8.0.0 to before 8.0.2 | 7.0.26, 7.1.1, 8.0.2 | Patch available | CNA |
| — | org.glassfish.main.admingui:admingui (Maven) | before 8.0.2 | 8.0.2 | Patch available | GHSA-29wv-cv7p-xjc2 |
| — | org.glassfish.jsftemplating:jsftemplating (Maven) | before 4.2.0 | 4.2.0 | Patch available | GHSA-29wv-cv7p-xjc2 |
- Eclipse Glassfish VendorEclipse Foundation Affected 7.0.0 to before 7.0.26; 7.1.0 to before 7.1.1; 8.0.0 to before 8.0.2 Fixed in 7.0.26, 7.1.1, 8.0.2 Patch available CNA
- org.glassfish.main.admingui:admingui (Maven) Vendor— Affected before 8.0.2 Fixed in 8.0.2 Patch available GHSA-29wv-cv7p-xjc2
- org.glassfish.jsftemplating:jsftemplating (Maven) Vendor— Affected before 4.2.0 Fixed in 4.2.0 Patch available GHSA-29wv-cv7p-xjc2
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:eclipse:glassfish:*:*:*:*:*:*:*:* | before 8.0.2 | Vulnerable | Eclipse Foundation |
- cpe:2.3:a:eclipse:glassfish:*:*:*:*:*:*:*:* Versions before 8.0.2 Vulnerable ·Eclipse Foundation
Remediation
- Fix · CNA Eclipse Glassfish (Eclipse Foundation) Fixed in 7.0.26, 7.1.1, 8.0.2
- Fix · GHSA-29wv-cv7p-xjc2 org.glassfish.main.admingui:admingui (Maven) Fixed in 8.0.2 Advisory →
- Fix · GHSA-29wv-cv7p-xjc2 org.glassfish.jsftemplating:jsftemplating (Maven) Fixed in 4.2.0 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Eclipse Glassfish 7.0.26, 7.1.1, 8.0.2
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2026-02209 Expression language injection in Eclipse GlassfishPriority MEDIUM 43
Timeline
- 2026-10-02 Threatist record created from CVE-2026-2587
- 2026-10-03 Alias added: GHSA-29wv-cv7p-xjc2
References
More Eclipse Foundation Glassfish vulnerabilities
- TI-2023-05301 Glassfish remote code execution CVSS 3.1CRITICAL 9.8
- TI-2026-10805 Server-side request forgery in Eclipse GlassFish CVSS 3.1CRITICAL 9.6
- TI-2026-02209 Expression language injection in Eclipse Glassfish CVSS 3.1CRITICAL 9.1
- TI-2024-08729 Server-side request forgery in Eclipse Glassfish CVSS 4.0HIGH 8.9
- TI-2024-08661 Glassfish redirect to untrusted site CVSS 4.0MEDIUM 6.9
- TI-2022-02510 Path traversal in Eclipse GlassFish CVSS 3.1HIGH 7.5
Sources
- CVE-2026-2587 · CVE Program
- CVE-2026-2587 · NVD
- FIRST EPSS
- GHSA-29wv-cv7p-xjc2 · GitHub Advisory Database · CC BY 4.0
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