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[NEW] [medium] Filebeat: Vulnerability enables Denial of Service

mediumCVE-2026-78588
A remote, authenticated attacker can exploit a vulnerability in Filebeat to perform a Denial of Service attack.

CSIRTS triage

vendor: Elasticproduct: FilebeatDenial of service
What
A vulnerability in Filebeat allows a remote authenticated attacker to trigger a Denial of Service condition.
Who is affected
Filebeat deployments with authenticated access enabled.
Urgency
Medium severity; requires authentication and is currently unexploited.
Action
Update Filebeat to the latest patched version.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity
medium
Published
2026-09-03
Exploitation
Not in CISA KEV at last sync
Language
Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-3134

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-78588coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Filebeat

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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