Answer in brief
CVE-2020-36939 records a High severity (CVSS 8.7) vulnerability in Cassandra Web 0.5.0 - Remote File Read. The current sources do not mark it as known exploited. The current feed maps avalanche123/Cassandra Web (generic), cassandra-web (rubygems), cassandra-web (rubygems). 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 8.7. 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 avalanche123/Cassandra Web (generic), cassandra-web (rubygems), cassandra-web (rubygems). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| avalanche123/Cassandra Webgeneric | 0.5.0 | Not reported |
| cassandra-webrubygems | <=0.5.0 | Not reported |
| cassandra-webrubygems | >=0 | Not reported |
Published upstream
Jan 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 8, 2026
Cassandra Web 0.5.0 contains a directory traversal vulnerability that allows unauthenticated attackers to read arbitrary files by manipulating path traversal parameters. Attackers can exploit the disabled Rack::Protection module to read sensitive system files like /etc/passwd and retrieve Apache Cassandra database credentials.
Quoted source text, attributed separately from HOL analysis.