CVE-2020-21514: Fluent Fluentd and Fluent-ui use default password

April 4, 2023 (updated May 22, 2025)

An issue was discovered in Fluent Fluentd v.1.8.0 and Fluent-ui v.1.2.2 that allows attackers to gain escilated privileges and execute arbitrary code due to use of a default password.

References

github.com/advisories/GHSA-wrxf-x8rm-6ggg
github.com/fluent/fluentd/issues/2722
github.com/rubysec/ruby-advisory-db/blob/master/gems/fluentd-ui/CVE-2020-21514.yml
github.com/rubysec/ruby-advisory-db/blob/master/gems/fluentd/CVE-2020-21514.yml
nvd.nist.gov/vuln/detail/CVE-2020-21514

Code Behaviors & Features

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