{"cve":"CVE-2026-44024","nvd":{"published":"2026-07-08T22:17:14.337","modified":"2026-10-25T17:10:00.197","status":"Analyzed","description":"Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS, SaaS, Hadoop and so on. Prior to 1.19.3, Fluentd allows dynamically constructing file paths using the ${tag} placeholder, and insufficient validation of ${tag} in file configurations such as the path parameter of the out_file plugin allows attackers sending untrusted tags containing path traversal characters to write or overwrite arbitrary files and potentially achieve remote code execution. This issue is fixed in version 1.19.3.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-22"],"references":["https://github.com/fluent/fluentd/commit/45c87a81f3ac0b72b3f9dcfe8cfb5f9038f81437","https://github.com/fluent/fluentd/pull/5391","https://github.com/fluent/fluentd/releases/tag/v1.19.3","https://github.com/fluent/fluentd/security/advisories/GHSA-44hj-4m45-frj3"],"products":["fluentd:fluentd"],"source":"nvd","synced_at":"2026-10-25T17:50:06.907763985+00:00"},"epss":{"cve":"CVE-2026-44024","score":0.01085,"percentile":0.65008,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-44hj-4m45-frj3","url":"https://osv.dev/vulnerability/GHSA-44hj-4m45-frj3","summary":"Fluentd is Vulnerable to Remote Code Execution (RCE) via Arbitrary File Write in `${tag}` Placeholder","modified":"2026-09-10T03:51:07.853967833Z","packages":[{"ecosystem":"RubyGems","name":"fluentd","purl":"pkg:gem/fluentd","ranges":["<1.19.3"],"fixed":["1.19.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}