[NEW] [high] Kibana: Multiple vulnerabilities

highCVE-2026-49087 CVE-2026-49088 CVE-2026-49089 CVE-2026-49091 CVE-2026-56151

A remote, authenticated attacker can exploit multiple vulnerabilities in Kibana to conduct a denial of service attack, execute arbitrary code, bypass security measures, and disclose confidential information.

CSIRTS triage

vendor: Kibana product: Kibana Denial of service Remote code execution Authentication bypass Information disclosure

What: Multiple vulnerabilities allow denial of service, arbitrary code execution, bypassing security measures, and disclosing confidential information.
Who is affected: Authenticated users of Kibana are affected.
Urgency: Remediation is urgent due to the high severity of the vulnerabilities.
Action: Apply the latest security patches to mitigate these vulnerabilities.

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: high
Published: 2026-08-14
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-2026-2179

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-490870.28% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-490880.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 12% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-490890.33% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 26% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-490910.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-561510.28% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-49087	coverage & exploitation status	NVD · CVE.org
CVE-2026-49088	coverage & exploitation status	NVD · CVE.org
CVE-2026-49089	coverage & exploitation status	NVD · CVE.org
CVE-2026-49091	coverage & exploitation status	NVD · CVE.org
CVE-2026-56151	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

Recent advisories for Kibana

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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