CVE-2026-23934
Frontend DoS via the validate.api.exists action
MEDIUM
6.5
CVSS Score
Published: August 18, 2026 at 12:18 PM UTC
Updated: September 23, 2026 at 03:09 PM UTC
1 product affected across 1 vendorZabbix
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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit
Description
An authenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend validate.api.exists action, leading to potential denial of service.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusANALYZED
CWE
CWE-405
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