OmniFaces: Forged combined-resource IDs and related output/push boundaries

Summary

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.

Timeline

1. Oct 14, 2026, 3:58 PM UTCCVE published
2. Oct 20, 2026, 1:38 AM UTCCISA SSVC assessment

   Exploitation: none · Automatable: yes · Technical impact: partial

3. Oct 20, 2026, 1:38 AM UTCRecord last updated

Affected versions

• omnifaces omnifaces

  fixed in 1.14.3; From 2.0 · fixed in 2.7.33; From 3.0 · fixed in 3.14.23; From 4.0 · fixed in 4.7.12; From 5.0 · fixed in 5.4.2

• org.omnifaces:omnifacesMaven

  fixed in 1.14.3

• org.omnifaces:omnifacesMaven

  From 2.0.0 · fixed in 2.7.33

• org.omnifaces:omnifacesMaven

  From 3.0.0 · fixed in 3.14.23

• org.omnifaces:omnifacesMaven

  From 4.0.0 · fixed in 4.7.12

• org.omnifaces:omnifacesMaven

  From 5.0.0 · fixed in 5.4.2

References 7