Inefficient Regular Expression Complexity in cdr/code-server
Priority LOW 35CWE-1333Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-1333.
Summary
code-server is vulnerable to Inefficient Regular Expression Complexity
Why it matters now
EPSS 0.01262 69th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed cdr/code-server (cdr): 3.12.0code-server (npm): 3.12.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| cdr | cdr/code-server | before 3.12.0 | 3.12.0 | Patch available | CNA |
| — | code-server (npm) | before 3.12.0 | 3.12.0 | Patch available | GHSA-49x3-8228-3w3m |
- cdr/code-server Vendorcdr Affected before 3.12.0 Fixed in 3.12.0 Patch available CNA
- code-server (npm) Vendor— Affected before 3.12.0 Fixed in 3.12.0 Patch available GHSA-49x3-8228-3w3m
Remediation
- Fix · CNA cdr/code-server (cdr) Fixed in 3.12.0
- Fix · GHSA-49x3-8228-3w3m code-server (npm) Fixed in 3.12.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-3810
- 2026-10-03 Alias added: GHSA-49x3-8228-3w3m
References
More coder Code-server vulnerabilities
- TI-2023-11339 Origin validation error in code-server CVSS 3.1CRITICAL 9.3
- TI-2021-18883 Cross-site scripting (XSS) vulnerability exists in Coder Code-Server before 3.12.0… CVSS 3.1MEDIUM 6.1
Sources
- CVE-2021-3810 · CVE Program
- CVE-2021-3810 · NVD
- FIRST EPSS
- GHSA-49x3-8228-3w3m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences