GHSA-r4m5-47cq-6qg8
Server-Side Request Forgery in ftp-srv
GHSA-r4m5-47cq-6qg8 is a vulnerability with no CVSS score yet in ftp-srv, published September 4, 2020. No source lists public exploit code. Fixed in ftp-srv 2.19.6.
- Severity
- UnratedNo CVSS score yet
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
2.19.6ftp-srv +2 more
Description
All versions of ftp-srv from v1.0.0 onward to v4.3.3 are vulnerable to Server-Side Request Forgery (SSRF). The package fails to prevent remote clients to access other resources in the network, for example when connecting to the server through telnet. This allows attackers to access any network resources available to the server, including private resources in the hosting environment.
Recommendation
Upgrade to patched versions
^2.19.6, ^3.1.2, ^4.3.4
Workarounds
Blacklisting the FTP Command PORT will prevent the server from exposing this behaviour through active connections until a fix is applied.
const ftp = new FtpSrv({
blacklist: ['PORT']
});
Affected packages
What each source reports
GitHub AdvisoriesNo score
Server-Side Request Forgery in ftp-srv
All versions of ftp-srv from v1.0.0 onward to v4.3.3 are vulnerable to Server-Side Request Forgery (SSRF). The package fails to prevent remote clients to access other resources in the network, for example when connecting to the server through telnet. This allows attackers to access any network resources available to the server, including private resources in the hosting environment.
Recommendation
Upgrade to patched versions
^2.19.6, ^3.1.2, ^4.3.4
Workarounds
Blacklisting the FTP Command PORT will prevent the server from exposing this behaviour through active connections until a fix is applied.
const ftp = new FtpSrv({
blacklist: ['PORT']
});
- Record
GHSA-r4m5-47cq-6qg8- Weakness
- CWE-918
- Updated
- 2026-11-02
OSVNo score
Server-Side Request Forgery in ftp-srv
All versions of ftp-srv from v1.0.0 onward to v4.3.3 are vulnerable to Server-Side Request Forgery (SSRF). The package fails to prevent remote clients to access other resources in the network, for example when connecting to the server through telnet. This allows attackers to access any network resources available to the server, including private resources in the hosting environment.
Recommendation
Upgrade to patched versions
^2.19.6, ^3.1.2, ^4.3.4
Workarounds
Blacklisting the FTP Command PORT will prevent the server from exposing this behaviour through active connections until a fix is applied.
const ftp = new FtpSrv({
blacklist: ['PORT']
});
- Record
GHSA-r4m5-47cq-6qg8- Weakness
- CWE-918
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.