CVE-2026-35583
Medium · 5.3CVSS
5.3
EPSS
0.4%
Published
Apr 7, 2026
CISA due date
—
The record
Emissary is a P2P based data-driven workflow engine. Prior to 8.39.0, the configuration API endpoint (/api/configuration/{name}) validated configuration names using a blacklist approach that checked for \, /, .., and trailing .. This could potentially be bypassed using URL-encoded variants, double-encoding, or Unicode normalization to achieve path traversal and read configuration files outside the intended directory. This vulnerability is fixed in 8.39.0.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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