{"id":"BIT-fluentd-2026-44160","summary":"Fluentd: Denial of Service (DoS) via Gzip Decompression Bomb in `in_http` and `in_forward`","details":"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's in_http and in_forward plugins support gzip-compressed data but enforce limits only on compressed payloads through settings such as body_size_limit and chunk_size_limit, allowing crafted compressed payloads to decompress in memory to an excessive size and cause denial of service through memory exhaustion. This issue is fixed in version 1.19.3.","aliases":["CVE-2026-44160","GHSA-j9cw-hwqf-85w7"],"modified":"2026-09-08T08:47:13.169452582Z","published":"2026-07-14T08:42:51.256Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:fluentd:fluentd:*:*:*:*:*:ruby:*:*"]},"references":[{"type":"FIX","url":"https://github.com/fluent/fluentd/commit/f5f2b7cddf8aab3932e6dec9fa367a5f3eb27e10"},{"type":"FIX","url":"https://github.com/fluent/fluentd/pull/5393"},{"type":"ARTICLE","url":"https://github.com/fluent/fluentd/releases/tag/v1.19.3"},{"type":"ADVISORY","url":"https://github.com/fluent/fluentd/security/advisories/GHSA-j9cw-hwqf-85w7"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44160"}],"affected":[{"package":{"name":"fluentd","ecosystem":"Bitnami","purl":"pkg:bitnami/fluentd"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.19.3"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/fluentd/BIT-fluentd-2026-44160.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.9.0"}