{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.5.5"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "22ea2d0cbfa2b7002aa118bd0bf1780a69d489bc"
            }
          ],
          "repo": "https://github.com/hkuds/lightrag",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-c759-cx9p-mrwq"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-208"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85725.json"
  },
  "details": "LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.5, verify_password in lightrag/api/passwords.py compares plaintext AUTH_ACCOUNTS password values with Python's == operator. The comparison can return after the first mismatching byte, creating response-time differences based on password length and matching prefixes. A network attacker with sufficiently low-latency access can repeatedly query the /login endpoint and use the timing oracle to recover a plaintext-configured password character by character. Deployments using bcrypt-prefixed password values are not affected by this comparison path. This issue is fixed in version 1.5.5.",
  "id": "CVE-2026-85725",
  "modified": "2026-09-23T03:30:36.559374750Z",
  "published": "2026-09-22T16:16:36.326Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85725.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/HKUDS/LightRAG/commit/89849c3ed0e0380345a6b5bade027cfb9a5bf32c"
    },
    {
      "type": "FIX",
      "url": "https://github.com/HKUDS/LightRAG/pull/3423"
    },
    {
      "type": "WEB",
      "url": "https://github.com/HKUDS/LightRAG/releases/tag/v1.5.5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/HKUDS/LightRAG/security/advisories/GHSA-c759-cx9p-mrwq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85725"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "LightRAG: Plaintext Passwords Compared Without Constant-Time Function"
}