CVE-2022-39379

LOW

Fluentd 1.13.2-1.15.2 - Unauthenticated Remote Code Execution via JSON Payload Deserialization

Title source: llm
STIX 2.1

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`.

References (3)

Core 3

Scores

CVSS v3 3.1
EPSS 0.0766
EPSS Percentile 92.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-502
Status published
Products (3)
fedoraproject/fedora 37
fluentd/fluentd 1.13.2 - 1.15.3
rubygems/fluentd 1.13.2 - 1.15.3RubyGems
Published Nov 02, 2022
Tracked Since Feb 18, 2026