🛡️ CVE-2023-26114 — code-server

🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-1385 OSV
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

code-server vulnerable to Missing Origin Validation in WebSockets

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability none.

Affected software

CVE-2023-26114 is recorded against 1 package.

  • code-server

Timeline and source

Published on 23 March 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)
github.com (Web)
security.snyk.io (Web)

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CWE CWE-1385
Public Exploit ✅ No
Source OSV
Published 2023-03-23
Updated 2026-08-12
Modified 2026-06-17

Affected Packages

Software From version Fixed in
code-server — —

Similar Threats

Exploit Protection

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CVE-2023-26114 carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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