FKIE_CVE-2026-54685

Vulnerability from fkie_nvd - Published: 2026-07-20 15:16 - Updated: 2026-07-22 20:50
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to version 1.3.2-beta, the `/api/auth/login` authentication endpoint does not execute in constant time. When a non-existent username is supplied, the server returns a `401`/`403` response almost immediately. When a valid username is provided, the server performs a bcrypt password comparison, causing a measurable delay in the response time. Version 1.3.2-beta patches the issue.
References
security-advisories@github.comhttps://github.com/gtsteffaniak/filebrowser/commit/af08800667b874620edc6f44c3e2e64fec7abd85
security-advisories@github.comhttps://github.com/gtsteffaniak/filebrowser/releases/tag/v1.3.2-beta
security-advisories@github.comhttps://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-7789-65hx-f26w
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-7789-65hx-f26w
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "filebrowser",
          "vendor": "gtsteffaniak",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.3.2-beta"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to version 1.3.2-beta, the `/api/auth/login` authentication endpoint does not execute in constant time. When a non-existent username is supplied, the server returns a `401`/`403` response almost immediately. When a valid username is provided, the server performs a bcrypt password comparison, causing a measurable delay in the response time. Version 1.3.2-beta patches the issue."
    }
  ],
  "id": "CVE-2026-54685",
  "lastModified": "2026-07-22T20:50:36.493",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-54685",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-21T15:30:56.605410Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-20T15:16:43.787",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gtsteffaniak/filebrowser/commit/af08800667b874620edc6f44c3e2e64fec7abd85"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.3.2-beta"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-7789-65hx-f26w"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-7789-65hx-f26w"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-208"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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