CVE-2026-35583

Description

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.

PUBLISHED Reserved 2026-04-03 | Published 2026-04-07 | Updated 2026-04-09 | Assigner GitHub_M

Problem types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

References

github.com/...issary/security/advisories/GHSA-hxf2-gm22-7vcm

cve.org (CVE-2026-35583)

nvd.nist.gov (CVE-2026-35583)

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