{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-44160", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-05T14:39:34.922Z", "datePublished": "2026-07-08T21:24:28.346Z", "dateUpdated": "2026-07-08T21:24:28.346Z"}, "containers": {"cna": {"title": "Fluentd: Denial of Service (DoS) via Gzip Decompression Bomb in `in_http` and `in_forward`", "problemTypes": [{"descriptions": [{"cweId": "CWE-409", "lang": "en", "description": "CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/fluent/fluentd/security/advisories/GHSA-j9cw-hwqf-85w7", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/fluent/fluentd/security/advisories/GHSA-j9cw-hwqf-85w7"}, {"name": "https://github.com/fluent/fluentd/pull/5393", "tags": ["x_refsource_MISC"], "url": "https://github.com/fluent/fluentd/pull/5393"}, {"name": "https://github.com/fluent/fluentd/commit/f5f2b7cddf8aab3932e6dec9fa367a5f3eb27e10", "tags": ["x_refsource_MISC"], "url": "https://github.com/fluent/fluentd/commit/f5f2b7cddf8aab3932e6dec9fa367a5f3eb27e10"}, {"name": "https://github.com/fluent/fluentd/releases/tag/v1.19.3", "tags": ["x_refsource_MISC"], "url": "https://github.com/fluent/fluentd/releases/tag/v1.19.3"}], "affected": [{"vendor": "fluent", "product": "fluentd", "versions": [{"version": "< 1.19.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-08T21:24:28.346Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-j9cw-hwqf-85w7", "discovery": "UNKNOWN"}}}}

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