# fluentd (RubyGems) vulnerabilities

Source: https://junglewise.ai/threats/technologies/fluentd  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/fluentd.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 7 vulnerabilities in fluentd (RubyGems): 0 in the last 7 days and 0 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-44161, was published on 8 July 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 7 (1 critical, 0 exploited in the wild)

## About fluentd (RubyGems)

Fluentd is an open-source data collector for a unified logging layer.

## Latest fluentd (RubyGems) vulnerabilities

- [CVE-2026-44161: Fluent Fluentd SSRF in out_http output plugin](https://junglewise.ai/threats/cve-2026-44161-fluent-fluentd-ssrf-in-out-http-output-plugin) (high, CVSS 7.2, published 8 Jul 2026)
- [CVE-2026-44160: Fluent Fluentd denial of service via decompression bomb in input plugins](https://junglewise.ai/threats/cve-2026-44160-fluent-fluentd-denial-of-service-via-decompression-bomb-in-input) (high, CVSS 7.5, published 8 Jul 2026)
- [CVE-2026-44025: Fluent Fluentd information disclosure in Monitor Agent plugin](https://junglewise.ai/threats/cve-2026-44025-fluent-fluentd-information-disclosure-in-monitor-agent-plugin) (high, CVSS 7.5, published 8 Jul 2026)
- [CVE-2026-44024: Fluent Fluentd path traversal in ${tag} placeholder](https://junglewise.ai/threats/cve-2026-44024-fluent-fluentd-path-traversal-in-tag-placeholder) (critical, CVSS 9.8, published 8 Jul 2026)
- [CVE-2022-39379: fluentd vulnerable to remote code execution due to insecure deserialization (in non-default configuration)](https://junglewise.ai/threats/cve-2022-39379-fluentd-vulnerable-to-remote-code-execution-due-to-insecure) (low, CVSS 3.1, published 2 Nov 2022)
- [CVE-2017-10906: Fluentd Escape Sequence Injection Vulnerability](https://junglewise.ai/threats/cve-2017-10906-fluentd-escape-sequence-injection-vulnerability) (low, CVSS 3, published 13 May 2022)
- [CVE-2021-41186: ReDoS vulnerability in parser_apache2](https://junglewise.ai/threats/cve-2021-41186-redos-vulnerability-in-parser-apache2) (low, CVSS 3.1, published 1 Nov 2021)

## Most severe fluentd (RubyGems) vulnerabilities

- [CVE-2026-44024: Fluent Fluentd path traversal in ${tag} placeholder](https://junglewise.ai/threats/cve-2026-44024-fluent-fluentd-path-traversal-in-tag-placeholder) (critical, CVSS 9.8, published 8 Jul 2026)
- [CVE-2026-44160: Fluent Fluentd denial of service via decompression bomb in input plugins](https://junglewise.ai/threats/cve-2026-44160-fluent-fluentd-denial-of-service-via-decompression-bomb-in-input) (high, CVSS 7.5, published 8 Jul 2026)
- [CVE-2026-44025: Fluent Fluentd information disclosure in Monitor Agent plugin](https://junglewise.ai/threats/cve-2026-44025-fluent-fluentd-information-disclosure-in-monitor-agent-plugin) (high, CVSS 7.5, published 8 Jul 2026)
- [CVE-2026-44161: Fluent Fluentd SSRF in out_http output plugin](https://junglewise.ai/threats/cve-2026-44161-fluent-fluentd-ssrf-in-out-http-output-plugin) (high, CVSS 7.2, published 8 Jul 2026)
- [CVE-2022-39379: fluentd vulnerable to remote code execution due to insecure deserialization (in non-default configuration)](https://junglewise.ai/threats/cve-2022-39379-fluentd-vulnerable-to-remote-code-execution-due-to-insecure) (low, CVSS 3.1, published 2 Nov 2022)
- [CVE-2021-41186: ReDoS vulnerability in parser_apache2](https://junglewise.ai/threats/cve-2021-41186-redos-vulnerability-in-parser-apache2) (low, CVSS 3.1, published 1 Nov 2021)
- [CVE-2017-10906: Fluentd Escape Sequence Injection Vulnerability](https://junglewise.ai/threats/cve-2017-10906-fluentd-escape-sequence-injection-vulnerability) (low, CVSS 3, published 13 May 2022)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other RubyGems technologies

- [actionpack (RubyGems)](https://junglewise.ai/threats/technologies/actionpack): 77 vulnerabilities
- [nokogiri (RubyGems)](https://junglewise.ai/threats/technologies/nokogiri): 69 vulnerabilities
- [rack (RubyGems)](https://junglewise.ai/threats/technologies/rack): 55 vulnerabilities
- [activerecord (RubyGems)](https://junglewise.ai/threats/technologies/rubygems-activerecord): 26 vulnerabilities
- [rubygems-update (RubyGems)](https://junglewise.ai/threats/technologies/rubygems-update): 25 vulnerabilities
- [puppet (RubyGems)](https://junglewise.ai/threats/technologies/puppet): 23 vulnerabilities
- [activesupport (RubyGems)](https://junglewise.ai/threats/technologies/activesupport): 20 vulnerabilities
- [actionview (RubyGems)](https://junglewise.ai/threats/technologies/actionview): 19 vulnerabilities
- [activestorage (RubyGems)](https://junglewise.ai/threats/technologies/activestorage): 19 vulnerabilities
- [camaleon_cms (RubyGems)](https://junglewise.ai/threats/technologies/camaleon-cms): 19 vulnerabilities
- [rails-html-sanitizer (RubyGems)](https://junglewise.ai/threats/technologies/rails-html-sanitizer): 18 vulnerabilities
- [loofah (RubyGems)](https://junglewise.ai/threats/technologies/loofah): 17 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "fluentd (RubyGems) vulnerabilities", https://junglewise.ai/threats/technologies/fluentd, 13 November 2026.