cve-2026-44160
HIGH CVSS 7.5 cvelistv5
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'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.
Timeline
- Published
- 2026-07-08 21:24 UTC
- Last Modified
- 2026-07-09
CVSS Details
- Attack Vector
- NETWORK
- Attack Complexity
- LOW
- Privileges Required
- NONE
Affected Products
- fluent fluentd
Weaknesses (CWE)
SSVC (CISA Stakeholder-Specific Vulnerability Categorization)
CISA Coordinator
v2.0.3
- Exploitation
none- Automatable
yes- Technical Impact
partial- Decision timestamp
2026-07-09T19:34:49.901088Z
What is SSVC? — CISA's vulnerability-prioritisation framework using a decision tree rather than a single score.
References
- https://github.com/fluent/fluentd/security/advisories/GHSA-j9cw-hwqf-85w7 x_refsource_CONFIRM
- https://github.com/fluent/fluentd/pull/5393 x_refsource_MISC
- https://github.com/fluent/fluentd/commit/f5f2b7cddf8aab3932e6dec9fa367a5f3eb27e10 x_refsource_MISC
- https://github.com/fluent/fluentd/releases/tag/v1.19.3 x_refsource_MISC
Linked Vulnerabilities
No linked vulnerabilities found.
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Enrichment data
Aggregated bundle (all enrichments)