What is CVE-2026-35583?

CVE-2026-35583 is a medium-severity vulnerability in Nationalsecurityagency Emissary, classified under Path Traversal. CVSS score: 5.3/10. Published 2026-04-07.

How severe is CVE-2026-35583?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Path Traversal in Nationalsecurityagency Emissary

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…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.001 (22.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Nationalsecurityagency Emissary — versions < 8.39.0

Weakness classification (CWE)

CWE-22 — Path Traversal

References

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

Frequently asked questions

What is CVE-2026-35583?: CVE-2026-35583 is a medium-severity vulnerability in Nationalsecurityagency Emissary, classified under Path Traversal. CVSS score: 5.3/10. Published 2026-04-07.
How severe is CVE-2026-35583?: Medium severity. CVSS v3 base score is 5.3 out of 10.