fluentd has 4 CVEs on record. The busiest recent month was June 2026 with 4. The median CVSS is 7.5 (high), with 1 rated critical.
CVEs per month
Last 12 months, by publish date
1125/111225/120126/010226/020326/030426/040526/050626/060726/070826/080926/091026/10
- Exploited share
- 0% vs 1% corpus
- Median CVSS
- 7.5
- Publish → KEV
- —
- Last 90 days
- 0 prev 4
4
Total CVEs
1
Critical
0
CISA KEV
0
Exploited
Worst active — by depth score
CVE-2026-44024Critical· 9.8Fluentd is Vulnerable to Remote Code Execution (RCE) via Arbitrary File Write in `${tag}` Placeholder66CVE-2026-44160High· 7.5Fluentd is Vulnerable to Denial of Service (DoS) via Gzip Decompression Bomb in `in_http` and `in_forward`41CVE-2026-44025High· 7.5Fluentd is Vulnerable to Exposure of Sensitive Information via Monitor Agent API41CVE-2026-44161High· 7.2Fluentd is Vulnerable to Server-Side Request Forgery (SSRF) via Placeholder Expansion in `out_http`40
fluentd vulnerabilities
CVEs affecting fluentd, newest first. Open any entry for full detail, references, and exploit status.
4 CVEsRSS
CVE-2026-44024Critical· 9.8PoCFluentd is Vulnerable to Remote Code Execution (RCE) via Arbitrary File Write in `${tag}` Placeholder
Fluentd is Vulnerable to Remote Code Execution (RCE) via Arbitrary File Write in `${tag}` Placeholder
▾ Abyssalfluentd · fluentdEPSS 1.1%via GHSA
CVE-2026-44025High· 7.5Fluentd is Vulnerable to Exposure of Sensitive Information via Monitor Agent API
Fluentd is Vulnerable to Exposure of Sensitive Information via Monitor Agent API
▾ Twilightfluentd · fluentdEPSS 0.47%via GHSA
CVE-2026-44160High· 7.5Fluentd is Vulnerable to Denial of Service (DoS) via Gzip Decompression Bomb in `in_http` and `in_forward`
Fluentd is Vulnerable to Denial of Service (DoS) via Gzip Decompression Bomb in `in_http` and `in_forward`
▾ Twilightfluentd · fluentdEPSS 0.62%via GHSA
CVE-2026-44161High· 7.2Fluentd is Vulnerable to Server-Side Request Forgery (SSRF) via Placeholder Expansion in `out_http`
Fluentd is Vulnerable to Server-Side Request Forgery (SSRF) via Placeholder Expansion in `out_http`
▾ Twilightfluentd · fluentdEPSS 0.44%via GHSA