What is CVE-2026-19898?

CVE-2026-19898 is a low-severity vulnerability in Victoriametrics, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 3.7/10. Published 2026-08-15.

How severe is CVE-2026-19898?

Low severity. CVSS v3 base score is 3.7 out of 10.

Vulnerability in Victoriametrics

CVE-2026-19898

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.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

N/a Victoriametrics — versions 1.146, 1.147.0

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (issue-tracking, exploit)
cna@vuldb.com (broken-link)
cna@vuldb.com (patch)
cna@vuldb.com (patch)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-19898?: CVE-2026-19898 is a low-severity vulnerability in Victoriametrics, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 3.7/10. Published 2026-08-15.
How severe is CVE-2026-19898?: Low severity. CVSS v3 base score is 3.7 out of 10.