High severity · published Apr 7, 2026
CVE-2026-35581
Emissary has a Command Injection via PLACE_NAME Configuration in Executrix
7.2
CVSS
0.6%
EPSS
No
On KEV
Description
Emissary is a P2P based data-driven workflow engine. Prior to 8.39.0, the Executrix utility class constructed shell commands by concatenating configuration-derived values — including the PLACE_NAME parameter — with insufficient sanitization. Only spaces were replaced with underscores, allowing shell metacharacters (;, |, $, `, (, ), etc.) to pass through into /bin/sh -c command execution. This vulnerability is fixed in 8.39.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EM
emissary · NationalSecurityAgency
< 8.39.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-35581
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-35581
Exploit
https://github.com/NationalSecurityAgency/emissary/security/advisories/GHSA-6c37-7w4p-jg9v
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