CVE-2017-16121
Directory Traversal in datachannel-client
datachannel-client is a signaling implementation for DataChannel.js. datachannel-client is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the url.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
datachannel-client is a signaling implementation for DataChannel.js. datachannel-client is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the url.
- Record
CVE-2017-16121- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
CVE List No score
datachannel-client is a signaling implementation for DataChannel.js. datachannel-client is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the url.
- Record
CVE-2017-16121- Weakness
- CWE-22
- Updated
- 2026-11-02
EUVDEUVD-2018-0289 No score
datachannel-client is a signaling implementation for DataChannel.js. datachannel-client is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the url.
- Record
EUVD-2018-0289- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jpg7-6c9f-7q54
Directory Traversal in datachannel-client
Affected versions of datachannel-client resolve relative file paths, resulting in a directory traversal vulnerability. A malicious actor can use this vulnerability to access files outside of the intended directory root, which may result in the disclosure of private files on the vulnerable system.
Example request:
GET /../../../../../../../../../../etc/passwd HTTP/1.1
host:foo
Recommendation
No patch is available for this vulnerability.
It is recommended that the package is only used for local development, and if the functionality is needed for production, a different package is used instead.
- Record
GHSA-jpg7-6c9f-7q54- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSVGHSA-jpg7-6c9f-7q54
Directory Traversal in datachannel-client
Affected versions of datachannel-client resolve relative file paths, resulting in a directory traversal vulnerability. A malicious actor can use this vulnerability to access files outside of the intended directory root, which may result in the disclosure of private files on the vulnerable system.
Example request:
GET /../../../../../../../../../../etc/passwd HTTP/1.1
host:foo
Recommendation
No patch is available for this vulnerability.
It is recommended that the package is only used for local development, and if the functionality is needed for production, a different package is used instead.
- Record
GHSA-jpg7-6c9f-7q54- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
datachannel-clientnpm |
through 1.0.2 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-16121 is a high vulnerability (CVSS 7.5) in Datachannel-client Project Datachannel-client, published June 7, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.97%, the 80th percentile. No source names a fixed version.