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Vulnerabilities

Vulnerability · 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.

Published Jan 27, 2026 · catalog updated Oct 8, 2026 · Cassandra Web

Last checked Nov 7, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2020-36939. EPSS is 2.98%. Act only if a listed version of Cassandra Web is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
2.98%
Remediation
Vendor / distro source
Affected products
vendor avalanche123 Cassandra Web 0.5.0

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor avalanche123 Cassandra Web 0.5.00.5.0

How to fix CVE-2020-36939

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2020-36939. EPSS is 2.98%. Act only if a listed version of Cassandra Web is installed.

Which versions are affected?

Compare what you have installed with avalanche123 Cassandra Web 0.5.0 0.5.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 2.98%. There is no CISA KEV listing. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 27, 2026 · EUVD

    Detected

    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.

  2. Oct 8, 2026 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2020-36939

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-36939

    30-day exploitation probability 2.98%

    first.org
  • EUVDVulnerability recordEUVD-2020-30857

    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

    euvd.enisa.europa.eu
  • Metasploit ModulesPublic exploit moduleauxiliary_scanner/http/cassandra_web_file_read

    Public module reference (normal). Module source is not copied into this catalog.

    rapid7.com

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Metasploit ModulesNov 7, 2026
  • FIRST EPSSNov 5, 2026
  • CVE.orgNov 4, 2026
  • EUVDNov 2, 2026