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TI-2026-16131 Aliases CVE-2026-19898GHSA-wmqf-q66j-3h4j

VictoriaMetrics VMAuth Authentication Endpoint main.go requestHandler excessive authentication

Priority MEDIUM 61CWE-307Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-307.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00752 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed VictoriaMetrics: 1.147.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—VictoriaMetrics1.1461.147.0Patch availableCNA
  • VictoriaMetrics Vendor— Affected 1.146 Fixed in 1.147.0 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:victoriametrics:victoriametrics:*:*:*:*:*:*:*:*——VictoriaMetrics
  • cpe:2.3:a:victoriametrics:victoriametrics:*:*:*:*:*:*:*:* Versions — — ·VictoriaMetrics

Remediation

  • Fix · CNA VictoriaMetrics Fixed in 1.147.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-19898
  2. 2026-10-03 Alias added: GHSA-wmqf-q66j-3h4j

References

Exploit 1

Patch 2

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences