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CVE-2021-32639 Details

Description

Emissary is a P2P-based, data-driven workflow engine. Emissary version 6.4.0 is vulnerable to Server-Side Request Forgery (SSRF). In particular, the `RegisterPeerAction` endpoint and the `AddChildDirectoryAction` endpoint are vulnerable to SSRF. This vulnerability may lead to credential leaks. Emissary version 7.0 contains a patch. As a workaround, disable network access to Emissary from untrusted sources.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.9 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CNA: [email protected]CVSS-B:7.2 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/NationalSecurityAgency/emissary/blob/30c54ef16c6eb6ed09604a929939fb9f66868382/src/main/java/emissary/server/mvc/internal/AddChildDirectoryAction.java	CVE	ExploitThird Party Advisory
https://github.com/NationalSecurityAgency/emissary/blob/30c54ef16c6eb6ed09604a929939fb9f66868382/src/main/java/emissary/server/mvc/internal/RegisterPeerAction.java	CVE	ExploitThird Party Advisory
https://github.com/NationalSecurityAgency/emissary/security/advisories/GHSA-2p8j-2rf3-h4xr	CVE	ExploitThird Party Advisory
https://github.com/NationalSecurityAgency/emissary/blob/30c54ef16c6eb6ed09604a929939fb9f66868382/src/main/java/emissary/server/mvc/internal/AddChildDirectoryAction.java	[email protected]	ExploitThird Party Advisory
https://github.com/NationalSecurityAgency/emissary/blob/30c54ef16c6eb6ed09604a929939fb9f66868382/src/main/java/emissary/server/mvc/internal/RegisterPeerAction.java	[email protected]	ExploitThird Party Advisory
https://github.com/NationalSecurityAgency/emissary/security/advisories/GHSA-2p8j-2rf3-h4xr	[email protected]	ExploitThird Party Advisory

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-918	Server-Side Request Forgery (SSRF)	[email protected]
CWE-918	Server-Side Request Forgery (SSRF)	[email protected]

Affected Products

Product	Versions
nsa emissary	<= 6.4.0
CPE cpe:2.3:a:nsa:emissary:::::::: Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jul 6, 2021	Initial Analysis	[email protected]