Answer in brief
CVE-2021-42648 records a Medium severity (CVSS 6.1) vulnerability in Cross site scripting in code-server. The current sources do not mark it as known exploited. The current feed maps code-server (npm). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps code-server (npm). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| code-servernpm | >=0 <3.12.0 | 3.12.0 |
Published upstream
May 12, 2022
Evidence: source:osv:source_dates:source-dates:recordSource modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:recordFirst seen by HOL
Aug 7, 2026
Cross-site scripting (XSS) vulnerability exists in Coder Code-Server before 3.12.0, allows attackers to execute arbitrary code via crafted URL.
Quoted source text, attributed separately from HOL analysis.