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

published 2026-04-16 6 mo ago modified 2026-06-17 4 mo ago also GHSA-vp6r-9m58-5xv8 , EUVD-2026-28794

cvss: 8.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

maven org.omnifaces:omnifaces 1.14.2, 2.7.32, 3.14.16, 4.7.5, 5.2.3

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 6 mo ago (2026-05-08)

Exploit prediction

0.50% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub	3.1	8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
maven	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	1.14.2 2.7.32 3.14.16 4.7.5 5.2.3

Affected products

omnifaces omnifaces

Classification

Weakness

CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary