CVE-2022-39379
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
fluentdRubyGems | >= 1.13.2, < 1.15.3 | 1.15.3 |
Affected products
5- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
- osv-coords2 versions
>= 1.13.2, < 1.15.3+ 1 more
- (no CPE)range: >= 1.13.2, < 1.15.3
- (no CPE)range: >= 1.13.2, < 1.15.3
- fluent/fluentdv5Range: >= 1.13.2, < 1.15.3
Patches
Vulnerability mechanics
References
7- github.com/fluent/fluentd/commit/48e5b85dab1b6d4c273090d538fc11b3f2fd8135nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-fppq-mj76-fpj2ghsaADVISORY
- github.com/fluent/fluentd/security/advisories/GHSA-fppq-mj76-fpj2nvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2022-39379ghsaADVISORY
- github.com/rubysec/ruby-advisory-db/blob/master/gems/fluentd/CVE-2022-39379.ymlghsaWEB
- lists.fedoraproject.org/archives/list/[email protected]/message/MYD5QV66OLDHES6IKVYYM3Y3YID3VVCOghsaWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MYD5QV66OLDHES6IKVYYM3Y3YID3VVCO/nvd
News mentions
1- Multiple Fluentd Vulnerabilities Let Attackers Execution Arbitrary Code RemotelyCyber Security News · Jul 1, 2026