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6.5 Medium

CVE-2026-0543 Improper Input Validation (CWE-20) in Kibana's Email Connector can allow an attacker to cause an Excessive Allocation…

Description

Improper Input Validation (CWE-20) in Kibana's Email Connector can allow an attacker to cause an Excessive Allocation (CAPEC-130) through a specially crafted email address parameter. This requires an attacker to have authenticated access with view-level privileges sufficient to execute connector actions. The application attempts to process specially crafted email format, resulting in complete service unavailability for all users until manual restart is performed.

Affected products and versions

Product Affected versions Fixed in
Kibana 9.2 9.2.0 → 9.2.3 No fix stated
Kibana 9.0 9.0.0 → 9.1.9 No fix stated
Kibana 8.0 8.0.0 → 8.19.9 No fix stated
Kibana 7.0 7.0.0 → 7.17.29 No fix stated

References

Timeline

  1. Published
  2. Last modified

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