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OpenAdvisories
Medium · 4.8 CVE-2026-54442 EUVD-2026-117790GHSA-c6q7-wqw2-h65w

NationalSecurityAgency/emissary: Incomplete fix for CVE-2026-35571: SSRF

Published Nov 5, 2026 · Updated Nov 5, 2026 · Assigned by GitHub_M

Description

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.

Affected products

VendorProductAffectedFixed
NationalSecurityAgency emissary < 8.51.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
Maven gov.nsa.emissary:emissary < 8.51.0 8.51.0 GHSA-c6q7-wqw2-h65w

References