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: 2026-04-07
Score: 5.3 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-hxf2-gm22-7vcm Emissary has a Path Traversal via Blacklist Bypass in Configuration API
History

Tue, 07 Apr 2026 18:00:00 +0000

Type Values Removed Values Added
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.
Title Emissary has a Path Traversal via Blacklist Bypass in Configuration API
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-07T15:57:41.496Z

Reserved: 2026-04-03T20:09:02.827Z

Link: CVE-2026-35583

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-07T17:16:33.663

Modified: 2026-04-07T17:16:33.663

Link: CVE-2026-35583

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses