CVE-2026-35583

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.

Score

CVSS 3.1 5.3 Medium

Status

Analyzed - security-advisories@github.com

Published

2026-04-07

Last modified

2026-10-26

Weaknesses

CWE-22

Affected products

• Emissary (Nationalsecurityagency)
• Emissary (Nsa)

References

• https://github.com/NationalSecurityAgency/emissary/security/advisories/GHSA-hxf2-gm22-7vcm