{"id":"BIT-fluentd-2022-39379","summary":"Fluentd vulnerable to remote code execution due to insecure deserialization (in non-default configuration)","details":"Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS, SaaS, Hadoop and so on. A remote code execution (RCE) vulnerability in non-default configurations of Fluentd allows unauthenticated attackers to execute arbitrary code via specially crafted JSON payloads. Fluentd setups are only affected if the environment variable `FLUENT_OJ_OPTION_MODE` is explicitly set to `object`. Please note: The option FLUENT_OJ_OPTION_MODE was introduced in Fluentd version 1.13.2. Earlier versions of Fluentd are not affected by this vulnerability. This issue was patched in version 1.15.3. As a workaround do not use `FLUENT_OJ_OPTION_MODE=object`.","aliases":["CVE-2022-39379","GHSA-fppq-mj76-fpj2"],"modified":"2026-09-08T08:47:11.169820614Z","published":"2024-03-06T10:51:50.613Z","database_specific":{"severity":"Critical","cpes":["cpe:2.3:a:fluentd:fluentd:*:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://github.com/fluent/fluentd/commit/48e5b85dab1b6d4c273090d538fc11b3f2fd8135"},{"type":"ADVISORY","url":"https://github.com/fluent/fluentd/security/advisories/GHSA-fppq-mj76-fpj2"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MYD5QV66OLDHES6IKVYYM3Y3YID3VVCO/"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-39379"}],"affected":[{"package":{"name":"fluentd","ecosystem":"Bitnami","purl":"pkg:bitnami/fluentd"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.13.2"},{"fixed":"1.15.3"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/fluentd/BIT-fluentd-2022-39379.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}],"schema_version":"1.9.0"}