Vulnerability-Lookup

CVE-2026-41883 (GCVE-0-2026-41883)

Vulnerability from cvelistv5 – Published: 2026-05-08 15:36 – Updated: 2026-05-08 19:40

Title

OmniFaces: EL injection via crafted resource name in wildcard CDN mapping

Summary

OmniFaces is a utility library for Faces. Prior to versions 1.14.2, 2.7.32, 3.14.16, 4.7.5, and 5.2.3, there is a server-side EL injection leading to Remote Code Execution (RCE). This affects applications that use CDNResourceHandler with a wildcard CDN mapping (e.g. libraryName:*=https://cdn.example.com/*). An attacker can craft a resource request URL containing an EL expression in the resource name, which is evaluated server-side. This issue has been patched in versions 1.14.2, 2.7.32, 3.14.16, 4.7.5, and 5.2.3.

Severity ?

8.1 (High)


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

CWE

CWE-917 - Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')

Assigner

GitHub_M

References

URL

Tags

https://github.com/omnifaces/omnifaces/security/a…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	omnifaces	omnifaces	Affected: < 1.14.2 Affected: >= 2.0-RC1, < 2.7.32 Affected: >= 3.0-RC1, < 3.14.16 Affected: >= 4.0-M1, < 4.7.5 Affected: >= 5.0-M1, < 5.2.3

Show details on NVD website

JSON

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FKIE_CVE-2026-41883

Vulnerability from fkie_nvd - Published: 2026-05-08 16:16 - Updated: 2026-05-08 16:16

Severity ?

8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/omnifaces/omnifaces/security/advisories/GHSA-vp6r-9m58-5xv8

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "OmniFaces is a utility library for Faces. Prior to versions 1.14.2, 2.7.32, 3.14.16, 4.7.5, and 5.2.3, there is a server-side EL injection leading to Remote Code Execution (RCE). This affects applications that use CDNResourceHandler with a wildcard CDN mapping (e.g. libraryName:*=https://cdn.example.com/*). An attacker can craft a resource request URL containing an EL expression in the resource name, which is evaluated server-side. This issue has been patched in versions 1.14.2, 2.7.32, 3.14.16, 4.7.5, and 5.2.3."
    }
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  "lastModified": "2026-05-08T16:16:11.760",
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GHSA-VP6R-9M58-5XV8

Vulnerability from github – Published: 2026-04-16 21:31 – Updated: 2026-04-30 20:16

Summary

OmniFaces: EL injection via crafted resource name in wildcard CDN mapping

Details

Impact

Server-side EL injection leading to Remote Code Execution (RCE). Affects applications that use CDNResourceHandler with a wildcard CDN mapping (e.g. libraryName:*=https://cdn.example.com/*). An attacker can craft a resource request URL containing an EL expression in the resource name, which is evaluated server-side.

The severity depends on the EL implementation and the objects available in the EL context. In the worst case this leads to Remote Code Execution (RCE). At minimum it allows information disclosure and denial of service.

Applications using CDNResourceHandler without wildcard mappings (i.e. only explicit resource-to-URL mappings) are not affected.

Patches

Fixed in versions 5.2.3, 4.7.5, 3.14.16, 2.7.32, and 1.14.2. Users should upgrade to the appropriate version for their branch.

Workarounds

Replace wildcard CDN mappings with explicit resource-to-URL mappings. For example, replace:

libraryName:*=https://cdn.example.com/*

with individual entries:

libraryName:resource1.js=https://cdn.example.com/resource1.js,
libraryName:resource2.js=https://cdn.example.com/resource2.js

Severity ?

8.1 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.omnifaces:omnifaces"
      },
      "ranges": [
        {
          "events": [
            {
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            },
            {
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            }
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        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.omnifaces:omnifaces"
      },
      "ranges": [
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        "name": "org.omnifaces:omnifaces"
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              "introduced": "4.0-M1"
            },
            {
              "fixed": "4.7.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c 5.2.2"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.omnifaces:omnifaces"
      },
      "ranges": [
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          "events": [
            {
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            },
            {
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            }
          ],
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        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-41883"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-917"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-16T21:31:14Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\n\nServer-side EL injection leading to Remote Code Execution (RCE). Affects applications that use `CDNResourceHandler` with a wildcard CDN mapping (e.g. `libraryName:*=https://cdn.example.com/*`). An attacker can craft a resource request\nURL containing an EL expression in the resource name, which is evaluated server-side.\n\nThe severity depends on the EL implementation and the objects available in the EL context. In the worst case this leads to Remote Code Execution (RCE). At minimum it allows information disclosure and denial of service.\n\nApplications using `CDNResourceHandler` without wildcard mappings (i.e. only explicit resource-to-URL mappings) are **not** affected.\n\n### Patches\n\nFixed in versions 5.2.3, 4.7.5, 3.14.16, 2.7.32, and 1.14.2. Users should upgrade to the appropriate version for their branch.\n\n### Workarounds\n\nReplace wildcard CDN mappings with explicit resource-to-URL mappings. For example, replace:\n```\nlibraryName:*=https://cdn.example.com/*\n```\nwith individual entries:\n```\nlibraryName:resource1.js=https://cdn.example.com/resource1.js,\nlibraryName:resource2.js=https://cdn.example.com/resource2.js\n```",
  "id": "GHSA-vp6r-9m58-5xv8",
  "modified": "2026-04-30T20:16:14Z",
  "published": "2026-04-16T21:31:14Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/omnifaces/omnifaces/security/advisories/GHSA-vp6r-9m58-5xv8"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/omnifaces/omnifaces"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OmniFaces: EL injection via crafted resource name in wildcard CDN mapping"
}

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

CVE-2026-41883 (GCVE-0-2026-41883)

FKIE_CVE-2026-41883

GHSA-VP6R-9M58-5XV8

Impact

Patches

Workarounds

Tags

Sightings

Nomenclature