CVE-2026-73306 (GCVE-0-2026-73306)
Vulnerability from cvelistv5
Published
2026-08-12 18:56
Modified
2026-08-13 12:18
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-204 - Observable Response Discrepancy
Summary
Budibase is an open-source low-code platform. Prior to 3.39.25, POST /api/global/auth/:tenantId/login incremented the failure counter in packages/worker/src/api/controllers/global/auth.ts only for existing users, while packages/worker/src/middleware/emailLockout.ts returned X-Account-Locked and Retry-After only for locked identifiers. An unauthenticated attacker could compare the response after repeated failures to enumerate valid email addresses and temporarily lock valid accounts. This issue is fixed in version 3.39.25.
References
Impacted products
Vendor Product Version
Budibase budibase Version: < 3.39.25
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-73306",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-13T12:18:33.414991Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-13T12:18:51.707Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/Budibase/budibase/security/advisories/GHSA-cr7p-cr3q-h5cm"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "budibase",
          "vendor": "Budibase",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.39.25"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Budibase is an open-source low-code platform. Prior to 3.39.25, POST /api/global/auth/:tenantId/login incremented the failure counter in packages/worker/src/api/controllers/global/auth.ts only for existing users, while packages/worker/src/middleware/emailLockout.ts returned X-Account-Locked and Retry-After only for locked identifiers. An unauthenticated attacker could compare the response after repeated failures to enumerate valid email addresses and temporarily lock valid accounts. This issue is fixed in version 3.39.25."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-204",
              "description": "CWE-204: Observable Response Discrepancy",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-12T18:56:08.322Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Budibase/budibase/security/advisories/GHSA-cr7p-cr3q-h5cm",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Budibase/budibase/security/advisories/GHSA-cr7p-cr3q-h5cm"
        },
        {
          "name": "https://github.com/Budibase/budibase/pull/19108",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Budibase/budibase/pull/19108"
        },
        {
          "name": "https://github.com/Budibase/budibase/commit/eaae816ab81615c07eb10e4619af078d00e2a706",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Budibase/budibase/commit/eaae816ab81615c07eb10e4619af078d00e2a706"
        },
        {
          "name": "https://github.com/Budibase/budibase/releases/tag/3.39.25",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Budibase/budibase/releases/tag/3.39.25"
        }
      ],
      "source": {
        "advisory": "GHSA-cr7p-cr3q-h5cm",
        "discovery": "UNKNOWN"
      },
      "title": "Budibase: Account Enumeration via Login Lockout Response Differential"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-73306",
    "datePublished": "2026-08-12T18:56:08.322Z",
    "dateReserved": "2026-08-11T19:42:11.451Z",
    "dateUpdated": "2026-08-13T12:18:51.707Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-73306\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-13T12:18:33.414991Z\"}}}], \"references\": [{\"url\": \"https://github.com/Budibase/budibase/security/advisories/GHSA-cr7p-cr3q-h5cm\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-13T12:18:42.835Z\"}}], \"cna\": {\"title\": \"Budibase: Account Enumeration via Login Lockout Response Differential\", \"source\": {\"advisory\": \"GHSA-cr7p-cr3q-h5cm\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"LOW\"}}], \"affected\": [{\"vendor\": \"Budibase\", \"product\": \"budibase\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 3.39.25\"}]}], \"references\": [{\"url\": \"https://github.com/Budibase/budibase/security/advisories/GHSA-cr7p-cr3q-h5cm\", \"name\": \"https://github.com/Budibase/budibase/security/advisories/GHSA-cr7p-cr3q-h5cm\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/Budibase/budibase/pull/19108\", \"name\": \"https://github.com/Budibase/budibase/pull/19108\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/Budibase/budibase/commit/eaae816ab81615c07eb10e4619af078d00e2a706\", \"name\": \"https://github.com/Budibase/budibase/commit/eaae816ab81615c07eb10e4619af078d00e2a706\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/Budibase/budibase/releases/tag/3.39.25\", \"name\": \"https://github.com/Budibase/budibase/releases/tag/3.39.25\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Budibase is an open-source low-code platform. Prior to 3.39.25, POST /api/global/auth/:tenantId/login incremented the failure counter in packages/worker/src/api/controllers/global/auth.ts only for existing users, while packages/worker/src/middleware/emailLockout.ts returned X-Account-Locked and Retry-After only for locked identifiers. An unauthenticated attacker could compare the response after repeated failures to enumerate valid email addresses and temporarily lock valid accounts. This issue is fixed in version 3.39.25.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-204\", \"description\": \"CWE-204: Observable Response Discrepancy\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-08-12T18:56:08.322Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-73306\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-13T12:18:51.707Z\", \"dateReserved\": \"2026-08-11T19:42:11.451Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-08-12T18:56:08.322Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.