Description
OmniFaces is a utility library for Faces. In OmniFaces versions before 1.14.3, 2.7.33, 3.14.23, 4.7.12, and 5.4.2, CombinedResourceHandler accepts a structurally valid deflated and base64 encoded combined resource ID without verifying that the server issued it. A forged ID can cause unbounded decoded output, add unique reconstructed IDs to a process-lifetime cache, or combine resources other than stylesheets and scripts. Because jakarta.faces.RESOURCE_EXCLUDES is not applied by this custom resolution path, a forged ID can disclose Facelets source from the webapp resource tree or META-INF/resources. In a deployment configured with the wildcard CDN mapping, a forged ID that selects omnifaces.graphic can also cause a blind, deployment-dependent server-side fetch whose destination derives partly from the request Host header. The flaw does not provide arbitrary file read or establish arbitrary-scheme or arbitrary-destination SSRF. The shared authenticity failure permits memory exhaustion and limited resource disclosure. This issue is fixed in versions 1.14.3, 2.7.33, 3.14.23, 4.7.12, and 5.4.2.
References7
- github.com/omnifaces/omnifaces/commit/aa42da361821ddfbb85b12656…
- github.com/omnifaces/omnifaces/releases/tag/1.14.3
- github.com/omnifaces/omnifaces/releases/tag/2.7.33
- github.com/omnifaces/omnifaces/releases/tag/3.14.23
- github.com/omnifaces/omnifaces/releases/tag/4.7.12
- github.com/omnifaces/omnifaces/releases/tag/5.4.2
- github.com/omnifaces/omnifaces/security/advisories/GHSA-fp43-vj…
Metrics
- CVSS 3.1
-
8.2
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H - EPSS — exploit probability
- 0% percentile: 24 · as of 11 November 2026
- CWE
- CWE-345CWE-409CWE-552
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.