Home/CVE/Versions of the package code-server before 4.10.1 are vulnerable to Missing Origin Validation in WebSockets handshakes.
CVE

CVE-2023-26114

Versions of the package code-server before 4.10.1 are vulnerable to Missing Origin Validation in WebSockets handshakes.

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.

HIGH · CVSS 8.2 EPSS 0.00178
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-1385Missing Origin Validation in WebSockets
CWE-346Origin Validation Error
CWE-346Origin Validation Error
▤

Affected Products & Versions

1
coder code-server< 4.10.1
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
npm code-server CRITICAL fixed in 4.10.1
▣

Scoring & Timeline

8.2
HIGH · CVSS v3.1 · report@snyk.io
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD23 Mar 2023 · 05:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/coder/code-server/commit/d477972c68fc8c8e8d610aa7287db87ba90e55c7Patch
https://github.com/coder/code-server/releases/tag/v4.10.1Release Notes
https://security.snyk.io/vuln/SNYK-JS-CODESERVER-3368148Patch
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