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CVE-2026-1199

API and Frontend login lockout race condition

LOW
3.7
CVSS Score
Published: August 18, 2026 at 12:15 PM UTC
Updated: September 8, 2026 at 03:41 PM UTC
1 product affected across 1 vendorZabbix

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Severity
LOW3.7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Zabbix API and Frontend login lockout mechanism has a flaw where several unsuccessful login requests are not properly counted towards the block counter if sent simultaneously, potentially allowing for more password guesses than intended.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Zabbix· Zabbix
95%
6.0.0 ≤ v ≤ 6.0.466.0.0 ≤ v < 6.0.477.0.0 ≤ v ≤ 7.0.277.0.0 ≤ v < 7.0.287.4.0 ≤ v ≤ 7.4.117.4.0 ≤ v < 7.4.126.0.07.0.07.4.0
Affected range stops below 6.0.47, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.0.28, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.4.12, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://support.zabbix.com/browse/ZBX-28076

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.7LOW[email protected]
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-362

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