Multiple vulnerabilities in Fluentd

unknownCVE-2026-44024 CVE-2026-44025 CVE-2026-44160 CVE-2026-44161 CVE-2026-44162 CVE-2026-44163

Fluentd provided by Fluentd Project contains multiple vulnerabilities.

CSIRTS triage

vendor: Fluentd product: FluentdOther

What: Multiple vulnerabilities exist within the Fluentd platform.
Who is affected: Users of Fluentd, specifics not detailed in the advisory.
Urgency: Remediation is necessary as the severity and exploitability of the vulnerabilities are currently unknown.
Action: Update to the latest version of Fluentd to ensure vulnerabilities are addressed.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Fluentd

Get an email when a new Fluentd advisory drops — max one per day, one-click unsubscribe.

Details

Source: JVN (Japan Vulnerability Notes) (JP · national-cert · site)
Severity: unknown
Published: 2026-06-29
Exploitation: Not in CISA KEV at last sync

Original advisory: https://jvn.jp/en/jp/JVN36011274/

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Moderate exploitation riskCVE-2026-440241.1% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 62% of all scored CVEs.
Low exploitation riskCVE-2026-440250.48% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 38% of all scored CVEs.
Low exploitation riskCVE-2026-441600.63% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 46% of all scored CVEs.
Low exploitation riskCVE-2026-441610.45% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 36% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-44024	coverage & exploitation status	NVD · CVE.org
CVE-2026-44025	coverage & exploitation status	NVD · CVE.org
CVE-2026-44160	coverage & exploitation status	NVD · CVE.org
CVE-2026-44161	coverage & exploitation status	NVD · CVE.org
CVE-2026-44162	coverage & exploitation status	NVD · CVE.org
CVE-2026-44163	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Fluentd

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

high[UPDATE] [high] Fluentd: Multiple vulnerabilitiescert-bund · 2026-07-09
highCVE-2026-44161: Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS…nvd · 2026-07-08
highCVE-2026-44160: Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS…nvd · 2026-07-08
highCVE-2026-44025: Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS…nvd · 2026-07-08
criticalCVE-2026-44024: Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS…nvd · 2026-07-08