CVE-2023-26114 json
code-server vulnerable to Missing Origin Validation in WebSockets
published 2023-03-23 3 y ago modified 2026-09-10 1 mo ago also GHSA-frjg-g767-7363 , EUVD-2023-1003
- cvss
- 9.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm code-server 4.10.1
- n/a code-server 4.10.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 20 mo ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.2 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L/E:P |
| CISA ADP | 3.1 | 9.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
| CNA | 3.1 | 8.2 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L |
| NVD | 3.1 | 9.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
| CNA | 3.1 | 9.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
| GitHub | 3.1 | 9.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | code-server | <4.10.1 |
4.10.1 |
Affected products
- n/a code-server
Classification
References
-
github.com
/coder/code-server/commit/d477972c68fc8c8e8d610aa7287db87ba90e55c7
web, patch
-
security.snyk.io
/vuln/SNYK-JS-CODESERVER-3368148
web, patch
-
github.com
/coder/code-server/releases/tag/v4.10.1
web, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2023-26114
advisory
-
github.com
/coder/code-server
package
Sources
- CVE List CVE-2023-26114
- GitHub Advisory GHSA-frjg-g767-7363
- NVD CVE-2023-26114
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