Bug 2567676 (CVE-2026-54442) - CVE-2026-54442 gov.nsa.emissary/emissary: Emissary: Open redirect via improper navigation link URL validation
Summary: CVE-2026-54442 gov.nsa.emissary/emissary: Emissary: Open redirect via imprope...
Keywords:
Status: NEW
Alias: CVE-2026-54442
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-05 22:17 UTC by OSIDB Bzimport
Modified: 2026-11-06 00:22 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-11-05 22:17:21 UTC 
Emissary is a P2P based data-driven workflow engine. Prior to 8.51.0, the VALID_LINK validation in src/main/java/emissary/server/mvc/NavAction.java accepts protocol-relative URLs when processing configured navigation links. Browser URL normalization can interpret these accepted strings as external origins. The authoritative advisory attributes open redirect, server-side request forgery, and cloud metadata access to this bypass, but it identifies neither the server-side dereference path nor how navigation-link processing reaches that path. This issue is fixed in version 8.51.0.
Note You need to log in before you can comment on or make changes to this bug.