CVE-2026-19898
VictoriaMetrics VMAuth Authentication Endpoint main.go requestHandler excessive authentication
- State
- Published
- Severity
- 6.3 Medium
- Published
- Aug 15, 2026
- Updated
- Aug 18, 2026
- Reserved
- Aug 14, 2026
Description
A vulnerability was found in VictoriaMetrics up to 1.146.0. Impacted is the function requestHandler of the file app/vmauth/main.go of the component VMAuth Authentication Endpoint. Performing a manipulation results in improper restriction of excessive authentication attempts. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is considered difficult. The exploit has been made public and could be used. Upgrading to version 1.147.0 is recommended to address this issue. The patch is named 119ba0fb5be8024d50c5ba946599b2e69e8803ea. Upgrading the affected component is recommended.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.3 Medium | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.7 Low | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C | VulDB |
| 3.0 | 3.7 Low | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C | VulDB |
| 2.0 | 2.6 Low | AV:N/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
VictoriaMetricsn/a |
|
References
- VDB-390088 | VictoriaMetrics VMAuth Authentication Endpoint main.go requestHandler excessive authenticationvdb-entrytechnical-description
- VDB-390088 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-19898 | CVE Analysis and Reportthird-party-advisory
- Submit #870679 | VictoriaMetrics <=1.146.0 Improper Restriction of Excessive Authentication Attemptsthird-party-advisory
- https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11180exploitissue-tracking
- https://github.com/VictoriaMetrics/VictoriaMetrics/security/advisories/GHSA-c7pm-322g-r9gfbroken-link
- https://github.com/VictoriaMetrics/VictoriaMetrics/commit/119ba0fb5be8024d50c5ba946599b2e69e8803eapatch
- https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.147.0patch
- https://github.com/VictoriaMetrics/VictoriaMetrics/product
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