Vulnerability-Lookup

CVE-2026-19898 (GCVE-0-2026-19898)

Vulnerability from cvelistv5 – Published: 2026-08-15 15:45 – Updated: 2026-08-15 15:45 X_Open Source

Title

VictoriaMetrics VMAuth Authentication Endpoint main.go requestHandler excessive authentication

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.

Severity

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

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

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

CWE

CWE-307 - Improper Restriction of Excessive Authentication Attempts
CWE-799 - Improper Control of Interaction Frequency

Assigner

VulDB

References

9 references

URL	Tags
https://vuldb.com/vuln/390088	vdb-entrytechnical-description
https://vuldb.com/vuln/390088/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-19898	third-party-advisory
https://vuldb.com/submit/870679	third-party-advisory
https://github.com/VictoriaMetrics/VictoriaMetric…	exploitissue-tracking
https://github.com/VictoriaMetrics/VictoriaMetric…	broken-link
https://github.com/VictoriaMetrics/VictoriaMetric…	patch
https://github.com/VictoriaMetrics/VictoriaMetric…	patch
https://github.com/VictoriaMetrics/VictoriaMetrics/	product

Impacted products

1 product

Vendor	Product	Version
n/a	VictoriaMetrics	Affected: 1.146 Unaffected: 1.147.0 cpe:2.3:a:victoriametrics:victoriametrics::::::::

Credits

ZAST.AI (VulDB User)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:victoriametrics:victoriametrics:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "VMAuth Authentication Endpoint"
          ],
          "product": "VictoriaMetrics",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "1.146"
            },
            {
              "status": "unaffected",
              "version": "1.147.0"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "ZAST.AI (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "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",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "vectorString": "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",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "vectorString": "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",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 2.6,
            "vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:OF/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-307",
              "description": "Improper Restriction of Excessive Authentication Attempts",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-799",
              "description": "Improper Control of Interaction Frequency",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-15T15:45:10.515Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-390088 | VictoriaMetrics VMAuth Authentication Endpoint main.go requestHandler excessive authentication",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/390088"
        },
        {
          "name": "VDB-390088 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/390088/cti"
        },
        {
          "name": "CVE-2026-19898 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-19898"
        },
        {
          "name": "Submit #870679 | VictoriaMetrics \u003c=1.146.0 Improper Restriction of Excessive Authentication Attempts",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/870679"
        },
        {
          "tags": [
            "exploit",
            "issue-tracking"
          ],
          "url": "https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11180"
        },
        {
          "tags": [
            "broken-link"
          ],
          "url": "https://github.com/VictoriaMetrics/VictoriaMetrics/security/advisories/GHSA-c7pm-322g-r9gf"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/VictoriaMetrics/VictoriaMetrics/commit/119ba0fb5be8024d50c5ba946599b2e69e8803ea"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.147.0"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/VictoriaMetrics/VictoriaMetrics/"
        }
      ],
      "tags": [
        "x_open-source"
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-08-14T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-08-14T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-08-14T21:07:20.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "VictoriaMetrics VMAuth Authentication Endpoint main.go requestHandler excessive authentication",
      "x_generator": [
        "VulDB PVTS v202608"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-19898",
    "datePublished": "2026-08-15T15:45:10.515Z",
    "dateReserved": "2026-08-14T19:02:14.371Z",
    "dateUpdated": "2026-08-15T15:45:10.515Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-19898",
      "date": "2026-08-16",
      "epss": "0.00482",
      "percentile": "0.39467"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-19898\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2026-08-15T16:16:39.230\",\"lastModified\":\"2026-08-15T16:16:39.230\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"}],\"affected\":[{\"source\":\"cna@vuldb.com\",\"affectedData\":[{\"vendor\":\"n/a\",\"product\":\"VictoriaMetrics\",\"cpes\":[\"cpe:2.3:a:victoriametrics:victoriametrics:*:*:*:*:*:*:*:*\"],\"modules\":[\"VMAuth Authentication Endpoint\"],\"versions\":[{\"version\":\"1.146\",\"status\":\"affected\"},{\"version\":\"1.147.0\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":2.9,\"baseSeverity\":\"LOW\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"LOW\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"PROOF_OF_CONCEPT\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":3.7,\"baseSeverity\":\"LOW\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.2,\"impactScore\":1.4}],\"cvssMetricV2\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:H/Au:N/C:P/I:N/A:N\",\"baseScore\":2.6,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"HIGH\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":4.9,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-307\"},{\"lang\":\"en\",\"value\":\"CWE-799\"}]}],\"references\":[{\"url\":\"https://github.com/VictoriaMetrics/VictoriaMetrics/\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://github.com/VictoriaMetrics/VictoriaMetrics/commit/119ba0fb5be8024d50c5ba946599b2e69e8803ea\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11180\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.147.0\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://github.com/VictoriaMetrics/VictoriaMetrics/security/advisories/GHSA-c7pm-322g-r9gf\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/cve/CVE-2026-19898\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/submit/870679\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/vuln/390088\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/vuln/390088/cti\",\"source\":\"cna@vuldb.com\"}]}}"
  }
}

GHSA-WMQF-Q66J-3H4J

Vulnerability from github – Published: 2026-08-15 18:31 – Updated: 2026-08-15 18:31

Details

Severity

3.7 (Low)


                  
                    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

2.9 (Low)


                  
                    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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-19898"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-307"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T16:16:39Z",
    "severity": "LOW"
  },
  "details": "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.",
  "id": "GHSA-wmqf-q66j-3h4j",
  "modified": "2026-08-15T18:31:18Z",
  "published": "2026-08-15T18:31:18Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/VictoriaMetrics/VictoriaMetrics/security/advisories/GHSA-c7pm-322g-r9gf"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19898"
    },
    {
      "type": "WEB",
      "url": "https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11180"
    },
    {
      "type": "WEB",
      "url": "https://github.com/VictoriaMetrics/VictoriaMetrics/commit/119ba0fb5be8024d50c5ba946599b2e69e8803ea"
    },
    {
      "type": "WEB",
      "url": "https://github.com/VictoriaMetrics/VictoriaMetrics"
    },
    {
      "type": "WEB",
      "url": "https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.147.0"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-19898"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/870679"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/390088"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/390088/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-19898 (GCVE-0-2026-19898)

GHSA-WMQF-Q66J-3H4J

Tags

Sightings

Nomenclature