How severe is CVE-2026-44160?

CVE-2026-44160 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-44160 being actively exploited?

It is not currently listed in CISA's Known Exploited Vulnerabilities catalog, and no EPSS exploit-prediction score is available yet.

How do I fix CVE-2026-44160?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-44160 published?

CVE-2026-44160 was published on 2026-07-08.

CVE-2026-44160

CVE-2026-44160 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. The underlying weakness is classified as CWE-409.

Key facts

Severity: High (CVSS 3.x base score 7.5)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-409
Published: 2026-07-08
Last modified: 2026-07-08

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-44160?: CVE-2026-44160 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-44160 being actively exploited?: It is not currently listed in CISA's Known Exploited Vulnerabilities catalog, and no EPSS exploit-prediction score is available yet.
How do I fix CVE-2026-44160?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-44160 published?: CVE-2026-44160 was published on 2026-07-08.

References

Other CWE-409 vulnerabilities

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CVE-2026-44697 — High (CVSS 8.6): Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.17, a remote, unauthenticated…
CVE-2026-49755 — High (CVSS 8.2): Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in wojtekmach Req allows…
CVE-2026-48594 — High (CVSS 8.2): Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-tesla tesla allows a denial of…
CVE-2026-43970 — High (CVSS 8.2): Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in ninenines cowlib allows…

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