CVE-2026-44163 (GCVE-0-2026-44163)
Vulnerability from cvelistv5
Published
2026-09-15 15:39
Modified
2026-09-16 16:02
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Summary
fluent-plugin-opentelemetry is a Fluentd input and output plugin for forwarding OpenTelemetry Protocol data. Prior to 0.5.3, the in_opentelemetry HTTP input read the entire incoming request body and decompressed payloads into memory without enforcing maximum size thresholds. When an OpenTelemetry ingestion endpoint was exposed to an untrusted network, an attacker could send an excessively large request or a highly compressed payload that expanded in memory. The resulting memory exhaustion could cause the operating system to terminate the Fluentd process, disrupting all log collection and forwarding on the affected node. This issue is fixed in version 0.5.3.
References
Impacted products
Vendor Product Version
fluent-plugins-nursery fluent-plugin-opentelemetry Version: < 0.5.3
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