{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-110861",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
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                "timestamp": "2026-10-20T02:26:21.724147Z",
                "version": "2.0.3"
              },
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            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-20T02:26:30.363Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/%40better-auth/drizzle-adapter",
          "product": "drizzle-adapter",
          "vendor": "better-auth",
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              "lessThan": "1.7.7",
              "status": "affected",
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              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "1.7.7",
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            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/%40better-auth/kysely-adapter",
          "product": "kysely-adapter",
          "vendor": "better-auth",
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              "lessThan": "1.7.0",
              "status": "affected",
              "version": "1.6.17",
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          "product": "better-auth",
          "vendor": "better-auth",
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            {
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              "version": "1.6.17",
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            {
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      ],
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        {
          "nodes": [
            {
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                  "criteria": "cpe:2.3:a:better-auth:better_auth:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "1.6.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "designorant"
        }
      ],
      "datePublic": "2026-09-30T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Better Auth @better-auth/drizzle-adapter and better-auth from 1.6.17 before 1.7.7, and @better-auth/kysely-adapter from 1.6.17 before 1.7.0, contain a race condition in database-backed rate limiting on PostgreSQL where the limit check is not atomic with the counter update. Remote attackers can send bursts of concurrent requests that pass the check together, exceeding configured limits on password sign-in, two-factor verification, one-time code, password reset, and other rate-limited endpoints."
        }
      ],
      "metrics": [
        {
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            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          },
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            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-307",
              "description": "Improper Restriction of Excessive Authentication Attempts",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-14T22:52:45.713Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-44jh-23m7-hpcf)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/better-auth/better-auth/security/advisories/GHSA-44jh-23m7-hpcf"
        },
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          "name": "VulnCheck Advisory: Better Auth drizzle-adapter 1.6.17 before 1.7.7 Rate Limit Bypass via Race Condition",
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            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/better-auth-drizzle-adapter-1.6.17-before-1.7.7-rate-limit-bypass-via-race-condition"
        }
      ],
      "title": "Better Auth drizzle-adapter 1.6.17 before 1.7.7 Rate Limit Bypass via Race Condition",
      "x_generator": {
        "engine": "vulncheck-endgame"
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    "assignerShortName": "VulnCheck",
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    "dateReserved": "2026-10-14T22:18:33.239Z",
    "dateUpdated": "2026-10-20T02:26:30.363Z",
    "state": "PUBLISHED"
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}