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.
CVE-2023-26114
This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 61% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.2
- EG Score
- 8.2(medium)
- EPSS
- 26.0%
- KEV
- Not listed
Published
March 23, 2023
Last Modified
February 25, 2025
References (6)
- report@snykhttps://github.com/coder/code-server/commit/d477972c68fc8c8e8d610aa7287db87ba90e55c7
- report@snykhttps://github.com/coder/code-server/releases/tag/v4.10.1
- report@snykhttps://security.snyk.io/vuln/SNYK-JS-CODESERVER-3368148
- af854a3a-2127-422b-91ae-364da2661108https://github.com/coder/code-server/commit/d477972c68fc8c8e8d610aa7287db87ba90e55c7
- af854a3a-2127-422b-91ae-364da2661108https://github.com/coder/code-server/releases/tag/v4.10.1
- af854a3a-2127-422b-91ae-364da2661108https://security.snyk.io/vuln/SNYK-JS-CODESERVER-3368148
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| code-server | — | 4.10.1 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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- 2026-05-25 04:48 UTCEG score recompute
- 2026-05-23 11:34 UTCOSV refresh
Frequently asked(5)
What is CVE-2023-26114?
When was CVE-2023-26114 disclosed?
Is CVE-2023-26114 actively exploited?
What is the CVSS score of CVE-2023-26114?
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Dependency Blast Radius
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