Technology · RubyGems
fluentd (RubyGems) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 7 vulnerabilities in fluentd (RubyGems): 0 in the last 7 days and 4 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.
- Last 7 days
- 0
- Last 90 days
- 4
- Critical, all time
- 1
- Exploited in the wild
- 0
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 pluginhighCVSS 7.2EPSS 0.4%
- CVE-2026-44160: Fluent Fluentd denial of service via decompression bomb in input pluginshighCVSS 7.5EPSS 0.6%
- CVE-2026-44025: Fluent Fluentd information disclosure in Monitor Agent pluginhighCVSS 7.5EPSS 0.5%
- CVE-2026-44024: Fluent Fluentd path traversal in ${tag} placeholdercriticalCVSS 9.8EPSS 1.1%
- CVE-2022-39379: fluentd vulnerable to remote code execution due to insecure deserialization (in non-default configuration)lowCVSS 3.1EPSS 45.0%
- CVE-2017-10906: Fluentd Escape Sequence Injection VulnerabilitylowCVSS 3EPSS 4.6%
- CVE-2021-41186: ReDoS vulnerability in parser_apache2lowCVSS 3.1EPSS 2.2%
Most severe fluentd (RubyGems) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-44024: Fluent Fluentd path traversal in ${tag} placeholdercriticalCVSS 9.8EPSS 1.1%
- CVE-2026-44160: Fluent Fluentd denial of service via decompression bomb in input pluginshighCVSS 7.5EPSS 0.6%
- CVE-2026-44025: Fluent Fluentd information disclosure in Monitor Agent pluginhighCVSS 7.5EPSS 0.5%
- CVE-2026-44161: Fluent Fluentd SSRF in out_http output pluginhighCVSS 7.2EPSS 0.4%
- CVE-2022-39379: fluentd vulnerable to remote code execution due to insecure deserialization (in non-default configuration)lowCVSS 3.1EPSS 45.0%
- CVE-2021-41186: ReDoS vulnerability in parser_apache2lowCVSS 3.1EPSS 2.2%
- CVE-2017-10906: Fluentd Escape Sequence Injection VulnerabilitylowCVSS 3EPSS 4.6%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 4 | 1 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/fluentd.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "fluentd (RubyGems) vulnerabilities", https://junglewise.ai/threats/technologies/fluentd, 27 September 2026.