CVE-2026-35581: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in NationalSecurityAgency emissary
CVE-2026-35581 is an OS command injection vulnerability in the NationalSecurityAgency's Emissary product prior to version 8. 39. 0. The Executrix utility class improperly sanitizes the PLACE_NAME parameter by only replacing spaces with underscores, allowing shell metacharacters to be injected into commands executed via /bin/sh -c. This flaw enables an attacker with high privileges to execute arbitrary commands with high impact on confidentiality, integrity, and availability. The vulnerability is fixed in version 8. 39. 0. No official patch link or vendor advisory is provided in the data, and no known exploits are reported in the wild.
AI Analysis
Technical Summary
Emissary, a P2P data-driven workflow engine by the NationalSecurityAgency, contains an OS command injection vulnerability (CWE-78) in versions before 8.39.0. The Executrix utility class constructs shell commands by concatenating configuration values, including the PLACE_NAME parameter, with insufficient sanitization. Only spaces are replaced with underscores, allowing dangerous shell metacharacters such as ;, |, $, `, (, and ) to be passed to /bin/sh -c, enabling command injection. This vulnerability is resolved in version 8.39.0.
Potential Impact
An attacker with high privileges can exploit this vulnerability to execute arbitrary OS commands, potentially leading to full system compromise affecting confidentiality, integrity, and availability of the affected system. The CVSS 3.1 base score is 7.2 (high severity), reflecting network attack vector, low attack complexity, no user interaction, and high impact on all security properties.
Mitigation Recommendations
Upgrade Emissary to version 8.39.0 or later where this vulnerability is fixed. Since no official patch link or advisory is provided, verify the upgrade from the vendor's official channels. Until upgraded, avoid using untrusted input in the PLACE_NAME parameter or any configuration values that influence shell command construction.
CVE-2026-35581: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in NationalSecurityAgency emissary
Description
CVE-2026-35581 is an OS command injection vulnerability in the NationalSecurityAgency's Emissary product prior to version 8. 39. 0. The Executrix utility class improperly sanitizes the PLACE_NAME parameter by only replacing spaces with underscores, allowing shell metacharacters to be injected into commands executed via /bin/sh -c. This flaw enables an attacker with high privileges to execute arbitrary commands with high impact on confidentiality, integrity, and availability. The vulnerability is fixed in version 8. 39. 0. No official patch link or vendor advisory is provided in the data, and no known exploits are reported in the wild.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Emissary, a P2P data-driven workflow engine by the NationalSecurityAgency, contains an OS command injection vulnerability (CWE-78) in versions before 8.39.0. The Executrix utility class constructs shell commands by concatenating configuration values, including the PLACE_NAME parameter, with insufficient sanitization. Only spaces are replaced with underscores, allowing dangerous shell metacharacters such as ;, |, $, `, (, and ) to be passed to /bin/sh -c, enabling command injection. This vulnerability is resolved in version 8.39.0.
Potential Impact
An attacker with high privileges can exploit this vulnerability to execute arbitrary OS commands, potentially leading to full system compromise affecting confidentiality, integrity, and availability of the affected system. The CVSS 3.1 base score is 7.2 (high severity), reflecting network attack vector, low attack complexity, no user interaction, and high impact on all security properties.
Mitigation Recommendations
Upgrade Emissary to version 8.39.0 or later where this vulnerability is fixed. Since no official patch link or advisory is provided, verify the upgrade from the vendor's official channels. Until upgraded, avoid using untrusted input in the PLACE_NAME parameter or any configuration values that influence shell command construction.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-03T20:09:02.827Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d5314faaed68159a339925
Added to database: 4/7/2026, 4:31:11 PM
Last enriched: 4/15/2026, 3:56:06 PM
Last updated: 5/22/2026, 2:59:05 AM
Views: 62
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