Fluentd Escape Sequence Injection Vulnerability

published 2017-12-08 8 y ago modified 2026-06-17 4 mo ago also GHSA-5jrp-w8fr-mrww , EUVD-2022-2613

cvss: 9.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 4.6%; EPSS 4.6% chance of exploitation in 30 days, percentile 91%
public exploits: 0; none known

Escape sequence injection vulnerability in Fluentd versions 0.12.29 through 0.12.40 may allow an attacker to change the terminal UI or execute arbitrary commands on the device via unspecified vectors.

Patch / fix

fixed in 1 distros 1 links 1

rubygems fluentd 0.12.41

fluentd openstack-optools 13 0.12.41-1.el7

red hat advisories RHSA-2018:2225

github.com/fluent/fluentd#1733 pull request

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-10906 updated 2026-11-05 cvss 5.3

fluentd: Escape sequence injection in filter_parser.rb:filter_stream can lead to arbitrary command execution when processing logs

Red Hat OpenShift Enterprise 3 fluentd
affected: no fix available
Red Hat OpenStack Platform 10 (Newton) Operational Tools fluentd Red Hat OpenStack Platform 11 (Ocata) Operational Tools fluentd Red Hat OpenStack Platform 12 (Pike) Operational Tools fluentd Red Hat Virtualization 4 fluentd
affected: no fix planned “Will not fix”
Red Hat OpenStack Platform 13.0 Operational Tools for RHEL 7 fluentd 0.12.41-1.el7
fixed: vendor fix RHSA-2018:2225

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.58% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C
GitHub	3.0	9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
rubygems	fluentd	>=0.12.29, <0.12.41	0.12.41

Affected products

Cloud Native Computing Foundation (CNCF) Fluentd

References

github.com /fluent/fluentd/pull/1733
web, issue-tracking, patch, third-party-advisory
access.redhat.com /errata/RHSA-2018:2225
vendor-advisory, web, third-party-advisory
jvn.jp /en/vu/JVNVU95124098/index.html
web, issue-tracking, third-party-advisory, vdb-entry
github.com /fluent/fluentd/blob/v0.12/CHANGELOG.md#bug-fixes
web, issue-tracking, release-notes, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2017-10906
advisory
github.com /fluent/fluentd
package
github.com /rubysec/ruby-advisory-db/blob/master/gems/fluentd/CVE-2017-10906.yml
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary