Vulnerability-Lookup

GHSA-F2FQ-5XQF-G726

Vulnerability from github – Published: 2026-10-09 06:31 – Updated: 2026-10-09 06:31

Details

An improper authentication vulnerability in the is_authenticated function (src/bolt/bolt_api.c) in FalkorDB before 4.20.0 allows a remote unauthenticated attacker to execute graph queries without credentials through the Bolt endpoint. The function decides whether a password is required by issuing an empty AUTH command to Redis and treats only a WRONGPASS error as meaning that a password is required; any other error, such as LOADING while a dataset is being loaded, MASTERDOWN during replication failover, or OOM under memory pressure, causes the client to be treated as authenticated. Only deployments that enable the Bolt endpoint (BOLT_PORT, disabled by default) are affected.

Severity

8.1 (High)


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

9.2 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-107910"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-09T06:17:12Z",
    "severity": "CRITICAL"
  },
  "details": "An improper authentication vulnerability in the is_authenticated function (src/bolt/bolt_api.c) in FalkorDB before 4.20.0 allows a remote unauthenticated attacker to execute graph queries without credentials through the Bolt endpoint. The function decides whether a password is required by issuing an empty AUTH command to Redis and treats only a WRONGPASS error as meaning that a password is required; any other error, such as LOADING while a dataset is being loaded, MASTERDOWN during replication failover, or OOM under memory pressure, causes the client to be treated as authenticated. Only deployments that enable the Bolt endpoint (BOLT_PORT, disabled by default) are affected.",
  "id": "GHSA-f2fq-5xqf-g726",
  "modified": "2026-10-09T06:31:18Z",
  "published": "2026-10-09T06:31:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-107910"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FalkorDB/FalkorDB/pull/2170"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FalkorDB/FalkorDB/commit/0b11a00b34b25c4d4fdfe55f0a35c8a00593bd7d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FalkorDB/FalkorDB/releases/tag/v4.20.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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"
    }
  ]
}

CVE-2026-107910 (GCVE-0-2026-107910)

Vulnerability from cvelistv5 – Published: 2026-10-09 05:08 – Updated: 2026-10-09 05:08

Title

Authentication bypass in FalkorDB Bolt endpoint via fail-open AUTH probe error handling

Summary

Severity

9.2 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

8.1 (High)


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

CWE

CWE-287 - Improper Authentication

Assigner

securin CNA under the mitre root

CNA scorecard B 80/100 over 70 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/FalkorDB/FalkorDB/pull/2170	patch
https://github.com/FalkorDB/FalkorDB/commit/0b11a…	patch
https://github.com/FalkorDB/FalkorDB/releases/tag…	release-notes

Impacted products

1 product

Vendor	Product	Version
FalkorDB	FalkorDB	Affected: 0 , < 4.20.0 (semver) cpe:2.3:a:falkordb:falkordb::::::::

Credits

Arjun Basnet from Securin

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/FalkorDB/FalkorDB",
          "cpes": [
            "cpe:2.3:a:falkordb:falkordb:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "Bolt protocol endpoint"
          ],
          "product": "FalkorDB",
          "programFiles": [
            "src/bolt/bolt_api.c"
          ],
          "programRoutines": [
            {
              "name": "is_authenticated"
            }
          ],
          "repo": "https://github.com/FalkorDB/FalkorDB",
          "vendor": "FalkorDB",
          "versions": [
            {
              "lessThan": "4.20.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Arjun Basnet from Securin"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An improper authentication vulnerability in the is_authenticated function (src/bolt/bolt_api.c) in FalkorDB before 4.20.0 allows a remote unauthenticated attacker to execute graph queries without credentials through the Bolt endpoint. The function decides whether a password is required by issuing an empty AUTH command to Redis and treats only a WRONGPASS error as meaning that a password is required; any other error, such as LOADING while a dataset is being loaded, MASTERDOWN during replication failover, or OOM under memory pressure, causes the client to be treated as authenticated. Only deployments that enable the Bolt endpoint (BOLT_PORT, disabled by default) are affected."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-115",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-115 Authentication Bypass"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 9.2,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV3_1": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "CWE-287 Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-09T05:08:13.092Z",
        "orgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
        "shortName": "securin"
      },
      "references": [
        {
          "name": "FalkorDB PR #2170",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/FalkorDB/FalkorDB/pull/2170"
        },
        {
          "name": "Fix commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/FalkorDB/FalkorDB/commit/0b11a00b34b25c4d4fdfe55f0a35c8a00593bd7d"
        },
        {
          "name": "FalkorDB 4.20.0 release notes",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/FalkorDB/FalkorDB/releases/tag/v4.20.0"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade FalkorDB to version 4.20.0 or later. Bolt protocol support, including the code affected by this issue, was removed in 4.20.0."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-06-29T00:00:00.000Z",
          "value": "Reported to FalkorDB"
        },
        {
          "lang": "en",
          "time": "2026-06-29T00:00:00.000Z",
          "value": "Vendor acknowledged the report"
        },
        {
          "lang": "en",
          "time": "2026-07-08T00:00:00.000Z",
          "value": "Vendor removed Bolt protocol support (PR #2170)"
        },
        {
          "lang": "en",
          "time": "2026-07-13T00:00:00.000Z",
          "value": "FalkorDB 4.20.0 released without Bolt support"
        },
        {
          "lang": "en",
          "time": "2026-09-27T00:00:00.000Z",
          "value": "Coordinated disclosure period ended"
        }
      ],
      "title": "Authentication bypass in FalkorDB Bolt endpoint via fail-open AUTH probe error handling",
      "workarounds": [
        {
          "lang": "en",
          "value": "Leave the Bolt endpoint disabled (do not set the BOLT_PORT module configuration; it is disabled by default), or restrict network access to the Bolt port to trusted clients."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
    "assignerShortName": "securin",
    "cveId": "CVE-2026-107910",
    "datePublished": "2026-10-09T05:08:13.092Z",
    "dateReserved": "2026-10-09T04:54:55.521Z",
    "dateUpdated": "2026-10-09T05:08:13.092Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.

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.
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GHSA-F2FQ-5XQF-G726

CVE-2026-107910 (GCVE-0-2026-107910)

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