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Vulnerabilities / CVE-2022-39379

critical

CVE-2022-39379

fluentd: remote code execution via crafted JSON payloads

Published Modified CWE 502
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GHSA3.1CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Red Hat8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Bitnami9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD, Bitnami, Photon OS. Rated lower by Red Hat (medium), GHSA (low), CBL-Mariner (low), Ruby Advisory DB (low).

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`.

Affected packages and fixed versions

SourcePackageFixed in
bitnami::Bitnami Vulnerability Databasefluentd1.15.3
Photon OS 4.0rubygem-fluentd1.15.3-1.ph4
Photon OS 5.0rubygem-fluentd1.15.2-4.ph5
CBL-Mariner 2.0rubygem-fluentd0:1.14.6-2.cm2
Red Hatfluentd, fluentd-doc, puppet-fluentdno fix listed
rubygems::GitHub Security Advisory RubyGemsfluentd1.15.3
rubygems::Ruby Advisory Databasefluentd>= 1.15.3
Show all 9 entries from 7 sources
SourcePackageFixed in
bitnami::Bitnami Vulnerability Databasefluentd1.15.3
Photon OS 4.0rubygem-fluentd1.15.3-1.ph4
Photon OS 5.0rubygem-fluentd1.15.2-4.ph5
CBL-Mariner 2.0rubygem-fluentd0:1.14.6-2.cm2
Red Hatfluentdno fix listed
Red Hatfluentd-docno fix listed
Red Hatpuppet-fluentdno fix listed
rubygems::GitHub Security Advisory RubyGemsfluentd1.15.3
rubygems::Ruby Advisory Databasefluentd>= 1.15.3

References

All 10 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.