CVE Explorer

CVE-2026-44160

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.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:aa0bfd9aa181f03e3e2972ae8b21eb78686f41260912cd25435c3a05a4347923

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"fluentd","vendor":"fluent","versions":[{"status":"affected","version":"< 1.19.3"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:8ef1ab32617ba1c17799f5c184161403aabed49b2b2b3c07eead2d4b67d5d63f · sha256:de767da1aa895640… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"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"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:8ef1ab32617ba1c17799f5c184161403aabed49b2b2b3c07eead2d4b67d5d63f · sha256:de767da1aa895640… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-409","description":"CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:8ef1ab32617ba1c17799f5c184161403aabed49b2b2b3c07eead2d4b67d5d63f · sha256:de767da1aa895640… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions

{"name":"https://github.com/fluent/fluentd/commit/f5f2b7cddf8aab3932e6dec9fa367a5f3eb27e10","tags":["x_refsource_MISC"],"url":"https://github.com/fluent/fluentd/commit/f5f2b7cddf8aab3932e6dec9fa367a5f3eb27e10"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8ef1ab32617ba1c17799f5c184161403aabed49b2b2b3c07eead2d4b67d5d63f · sha256:de767da1aa895640… · /containers/cna/references/2

{"name":"https://github.com/fluent/fluentd/pull/5393","tags":["x_refsource_MISC"],"url":"https://github.com/fluent/fluentd/pull/5393"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8ef1ab32617ba1c17799f5c184161403aabed49b2b2b3c07eead2d4b67d5d63f · sha256:de767da1aa895640… · /containers/cna/references/1

{"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"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8ef1ab32617ba1c17799f5c184161403aabed49b2b2b3c07eead2d4b67d5d63f · sha256:de767da1aa895640… · /containers/cna/references/3

{"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"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8ef1ab32617ba1c17799f5c184161403aabed49b2b2b3c07eead2d4b67d5d63f · sha256:de767da1aa895640… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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