Vulnerability-Lookup

GHSA-29WV-CV7P-XJC2

Vulnerability from github – Published: 2026-05-19 15:31 – Updated: 2026-05-19 15:31

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.

Severity

9.6 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-2587"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-917"
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-19T15:16:28Z",
    "severity": "CRITICAL"
  },
  "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) \u201cexpressions\u201d 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.",
  "id": "GHSA-29wv-cv7p-xjc2",
  "modified": "2026-05-19T15:31:35Z",
  "published": "2026-05-19T15:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2587"
    },
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      "type": "WEB",
      "url": "https://gitlab.eclipse.org/security/cve-assignment/-/issues/86"
    }
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  "severity": [
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      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-2587 (GCVE-0-2026-2587)

Vulnerability from cvelistv5 – Published: 2026-05-19 14:03 – Updated: 2026-05-20 10:26

Summary

Severity

9.6 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CWE

CWE-917 - Improper neutralization of special elements used in an expression language statement ('expression language injection')

Assigner

eclipse

References

1 reference

URL	Tags
https://gitlab.eclipse.org/security/cve-assignmen…

Impacted products

1 product

Vendor	Product	Version
Eclipse Foundation	Eclipse Glassfish	Unaffected: 8.0.2 , ≤ * (semver)

Credits

Camilo G. AkA Dedalo (DeepSecurity Perú)

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JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-29WV-CV7P-XJC2

CVE-2026-2587 (GCVE-0-2026-2587)

Tags

Sightings

Nomenclature