PT-2022-24940 · Fluentd · Fluentd

Ashie · Published 2022-11-02 · Updated 2025-09-19 · CVE-2022-39379

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Fluentd versions 1.13.2 through 1.15.2

Description A remote code execution vulnerability in non-default configurations of Fluentd allows unauthenticated attackers to execute arbitrary code via specially crafted JSON payloads. This issue affects Fluentd setups where the environment variable FLUENT OJ OPTION MODE is explicitly set to object. The option FLUENT OJ OPTION MODE was introduced in Fluentd version 1.13.2, and earlier versions are not affected.

Recommendations For Fluentd versions 1.13.2 through 1.15.2, update to version 1.15.3 to resolve the issue. As a temporary workaround for affected versions, do not use FLUENT OJ OPTION MODE=object.

Exploit

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

AZL-11396

BIT-FLUENTD-2022-39379

CVE-2022-39379

GHSA-FPPQ-MJ76-FPJ2

OESA-2025-2320

OESA-2025-2321

Affected Products

Fluentd

References · 17

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39379.json · Exploit
• 🔥 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/fluentd/CVE-2022-39379.yml · Exploit
• https://github.com/fluent/fluentd/commit/48e5b85dab1b6d4c273090d538fc11b3f2fd8135 · Patch
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/MYD5QV66OLDHES6IKVYYM3Y3YID3VVCO · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-2320 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-39379 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-11396 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-fppq-mj76-fpj2 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-39379 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MYD5QV66OLDHES6IKVYYM3Y3YID3VVCO · Vendor Advisory
• https://osv.dev/vulnerability/BIT-fluentd-2022-39379 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-2321 · Vendor Advisory
• https://github.com/fluent/fluentd · Note
• https://github.com/fluent/fluentd/security/advisories/GHSA-fppq-mj76-fpj2 · Note
• https://openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-2321 · Note