{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Trilium",
          "vendor": "TriliumNext",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.101.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Trilium Notes is an open-source, cross-platform hierarchical note taking application with focus on building large personal knowledge bases.  Prior to 0.101.0, a critical timing attack vulnerability in Trilium\u0027s sync authentication endpoint allows unauthenticated remote attackers to recover HMAC authentication hashes byte-by-byte through statistical timing analysis. This enables complete authentication bypass without password knowledge, granting full read/write access to victim\u0027s knowledge base. This vulnerability is fixed in 0.101.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-208",
              "description": "CWE-208: Observable Timing Discrepancy",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-06T21:21:19.308Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/TriliumNext/Trilium/security/advisories/GHSA-hxf6-58cx-qq3x",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/TriliumNext/Trilium/security/advisories/GHSA-hxf6-58cx-qq3x"
        },
        {
          "name": "https://github.com/TriliumNext/Trilium/pull/8129",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/TriliumNext/Trilium/pull/8129"
        }
      ],
      "source": {
        "advisory": "GHSA-hxf6-58cx-qq3x",
        "discovery": "UNKNOWN"
      },
      "title": "Trilium Notes has a Timing Attack Vulnerability in /api/login/sync"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-68621",
    "datePublished": "2026-02-06T21:21:19.308Z",
    "dateReserved": "2025-12-19T18:50:09.991Z",
    "dateUpdated": "2026-02-06T21:21:19.308Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-68621\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-02-06T22:16:10.660\",\"lastModified\":\"2026-02-06T22:16:10.660\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Trilium Notes is an open-source, cross-platform hierarchical note taking application with focus on building large personal knowledge bases.  Prior to 0.101.0, a critical timing attack vulnerability in Trilium\u0027s sync authentication endpoint allows unauthenticated remote attackers to recover HMAC authentication hashes byte-by-byte through statistical timing analysis. This enables complete authentication bypass without password knowledge, granting full read/write access to victim\u0027s knowledge base. This vulnerability is fixed in 0.101.0.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N\",\"baseScore\":7.4,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.2,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-208\"}]}],\"references\":[{\"url\":\"https://github.com/TriliumNext/Trilium/pull/8129\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/TriliumNext/Trilium/security/advisories/GHSA-hxf6-58cx-qq3x\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}