CVE-2026-54418 (GCVE-0-2026-54418)

Vulnerability from cvelistv5 – Published: 2026-08-05 06:58 – Updated: 2026-08-05 06:58
VLAI
Title
Leantime: Missing Authorization on TwoFA JSON-RPC Methods Allows Cross-Account 2FA Secret Disclosure and Bypass
Summary
Leantime through 3.6.2 exposes the JSON-RPC methods leantime.rpc.TwoFA.TwoFA.getSetupData, saveSecret, verifyAndEnable, and disable2FA, which act on a caller-supplied userId parameter with no ownership check, session pinning, or permission-attribute gate (unlike other RPC-exposed methods in the same dispatcher). Any authenticated user can invoke getSetupData with an arbitrary userId to read that user's live TOTP secret, or disable2FA to strip another account's two-factor authentication entirely, fully defeating account-level 2FA protection. This is related to CVE-2026-15509, which covers a similar missing-authorization pattern in the JSON-RPC editUser/addUser role-assignment path in the same application; the TwoFA service methods addressed here are a distinct, independently fixable set of RPC endpoints.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
Leantime Leantime Affected: 0 , ≤ 3.6.2 (custom)
Create a notification for this product.
Credits
Bobur Abdugafforov
Show details on NVD website
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Leantime",
          "programFiles": [
            "app/Domain/TwoFA/Services/TwoFA.php"
          ],
          "vendor": "Leantime",
          "versions": [
            {
              "lessThanOrEqual": "3.6.2",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Bobur Abdugafforov"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Leantime through 3.6.2 exposes the JSON-RPC methods leantime.rpc.TwoFA.TwoFA.getSetupData, saveSecret, verifyAndEnable, and disable2FA, which act on a caller-supplied userId parameter with no ownership check, session pinning, or permission-attribute gate (unlike other RPC-exposed methods in the same dispatcher). Any authenticated user can invoke getSetupData with an arbitrary userId to read that user\u0027s live TOTP secret, or disable2FA to strip another account\u0027s two-factor authentication entirely, fully defeating account-level 2FA protection. This is related to CVE-2026-15509, which covers a similar missing-authorization pattern in the JSON-RPC editUser/addUser role-assignment path in the same application; the TwoFA service methods addressed here are a distinct, independently fixable set of RPC endpoints."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "value": "HIGH"
            },
            "type": "CVSS_3.1_severity"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862 Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T06:58:34.770Z",
        "orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
        "shortName": "TuranSec"
      },
      "references": [
        {
          "url": "https://github.com/Leantime/leantime"
        }
      ],
      "title": "Leantime: Missing Authorization on TwoFA JSON-RPC Methods Allows Cross-Account 2FA Secret Disclosure and Bypass"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
    "assignerShortName": "TuranSec",
    "cveId": "CVE-2026-54418",
    "datePublished": "2026-08-05T06:58:34.770Z",
    "dateReserved": "2026-06-13T16:39:46.122Z",
    "dateUpdated": "2026-08-05T06:58:34.770Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}



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