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8.1

OmniFaces: Attackers can run malicious code on your server

published 6 months ago
Summary

If you use OmniFaces with a specific type of CDN setup, a hacker could inject malicious code into your server, potentially allowing them to take control of your server or steal sensitive information. To fix this, update to the latest version of OmniFaces or replace your CDN setup with explicit mappings instead of using wildcards.

What to do
  • Update omnifaces org.omnifaces:omnifaces to version 1.14.2.
  • Update omnifaces org.omnifaces:omnifaces to version 2.7.32.
  • Update omnifaces org.omnifaces:omnifaces to version 3.14.16.
  • Update omnifaces org.omnifaces:omnifaces to version 4.7.5.
  • Update omnifaces org.omnifaces:omnifaces to version 5.2.3.
Affected software
Ecosystem VendorProductAffected versions
Maven omnifaces org.omnifaces:omnifaces < 1.14.2
>= 2.0-RC1, < 2.7.32
>= 3.0-RC1, < 3.14.16
>= 4.0-M1, < 4.7.5
>= 5.0-M1, < 5.2.3
Fix: upgrade to 1.14.2
Original advisory text
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 appli...
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.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
8.1 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-917Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
Timeline
Published8 May 2026
Updated13 May 2026
First seen16 Apr 2026
Sources
GHSA-vp6r-9m58-5xv8 · OSV
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