[NEW] [high] Kibana: Multiple vulnerabilities
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
- 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
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.
- unknownMultiple vulnerabilities in Elastic Kibana (August 14, 2026)cert-fr-avis
- mediumCVE-2026-49089: Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to denial of…nvd
- unknownMultiple vulnerabilities in Elastic products (July 2, 2026)cert-fr-avis
- highCVE-2026-49091: Improper Output Neutralization for Logs (CWE-117) in Kibana can lead to log injection via Log …nvd
- mediumCVE-2026-56151: Improper Input Validation (CWE-20) in Kibana can lead to a denial of service via Input Data Ma…nvd
- mediumCVE-2026-49088: Insertion of Sensitive Information into Log File (CWE-532) in Kibana can lead to information d…nvd
- mediumCVE-2026-49087: Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to a denial …nvd
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