CVE-2020-36939

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.

CVSS 4.0

8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

3.0% chance of exploitation in the next 30 days; higher than 87% of CVEs (scores of 2026-10-25)

CWE

CWE-22

Published

2026-01-27

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

Packages (OSV)

References

• https://github.com/avalanche123/cassandra-web
• https://rubygems.org/gems/cassandra-web/versions/0.5.0
• https://www.exploit-db.com/exploits/49362
• https://www.vulncheck.com/advisories/cassandra-web-remote-file-read

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