npm code-server vulnerabilities

Latest npm code-server CVEs

Newest publication first

1. CVE-2025-47269 code-server session cookie can be extracted by having user visit specially crafted proxy URL

   Published 2025-05-09

   High·CVSS 8.3

   code-server runs VS Code on any machine anywhere through browser access. Prior to version 4.99.4, a maliciously crafted URL using the proxy subpath can result in the attacker gaining access to the session token. Failure to properly validate the port for a proxy request can result...

2. CVE-2023-26114 code-server vulnerable to Missing Origin Validation in WebSockets

   Published 2023-03-23

   High·CVSS 8.2

   Versions of the package code-server before 4.10.1 are vulnerable to Missing Origin Validation in WebSockets handshakes. Exploiting this vulnerability can allow an adversary in specific scenarios to access data from and connect to the code-server instance.

3. CVE-2021-3810 Inefficient Regular Expression Complexity in code-server

   High·CVSS 7.5 EPSS 1.3%

   code-server is vulnerable to Inefficient Regular Expression Complexity

4. CVE-2021-42648 Cross site scripting in code-server

   Medium·CVSS 6.1 EPSS 0.87%

   Cross-site scripting (XSS) vulnerability exists in Coder Code-Server before 3.12.0, allows attackers to execute arbitrary code via crafted URL.

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.