FKIE_CVE-2026-23626

Vulnerability from fkie_nvd - Published: 2026-01-18 23:15 - Updated: 2026-02-18 16:30
Severity ?
6.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Summary
Kimai is a web-based multi-user time-tracking application. Prior to version 2.46.0, Kimai's export functionality uses a Twig sandbox with an overly permissive security policy (`DefaultPolicy`) that allows arbitrary method calls on objects available in the template context. An authenticated user with export permissions can deploy a malicious Twig template that extracts sensitive information including environment variables, all user password hashes, serialized session tokens, and CSRF tokens. Version 2.46.0 patches this issue.
References
security-advisories@github.comhttps://github.com/kimai/kimai/commit/6a86afb5fd79f6c1825060b87c09bd1909c2e86fPatch
security-advisories@github.comhttps://github.com/kimai/kimai/pull/5757Issue Tracking
security-advisories@github.comhttps://github.com/kimai/kimai/releases/tag/2.46.0Product, Release Notes
security-advisories@github.comhttps://github.com/kimai/kimai/security/advisories/GHSA-jg2j-2w24-54cgExploit, Mitigation, Vendor Advisory
Impacted products
Vendor Product Version
kimai kimai *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:kimai:kimai:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "47DBF927-9B2F-4E84-9D11-0BB8793F2015",
              "versionEndExcluding": "2.46.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Kimai is a web-based multi-user time-tracking application. Prior to version 2.46.0, Kimai\u0027s export functionality uses a Twig sandbox with an overly permissive security policy (`DefaultPolicy`) that allows arbitrary method calls on objects available in the template context. An authenticated user with export permissions can deploy a malicious Twig template that extracts sensitive information including environment variables, all user password hashes, serialized session tokens, and CSRF tokens. Version 2.46.0 patches this issue."
    },
    {
      "lang": "es",
      "value": "Kimai es una aplicaci\u00f3n de seguimiento de tiempo multiusuario basada en web. Antes de la versi\u00f3n 2.46.0, la funcionalidad de exportaci\u00f3n de Kimai utiliza un Twig sandbox con una pol\u00edtica de seguridad excesivamente permisiva (\u0027DefaultPolicy\u0027) que permite llamadas a m\u00e9todos arbitrarias en objetos disponibles en el contexto de la plantilla. Un usuario autenticado con permisos de exportaci\u00f3n puede desplegar una plantilla Twig maliciosa que extrae informaci\u00f3n sensible, incluyendo variables de entorno, todos los hashes de contrase\u00f1a de usuario, tokens de sesi\u00f3n serializados y tokens CSRF. La versi\u00f3n 2.46.0 corrige este problema."
    }
  ],
  "id": "CVE-2026-23626",
  "lastModified": "2026-02-18T16:30:19.177",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 4.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-01-18T23:15:48.393",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/kimai/kimai/commit/6a86afb5fd79f6c1825060b87c09bd1909c2e86f"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking"
      ],
      "url": "https://github.com/kimai/kimai/pull/5757"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "url": "https://github.com/kimai/kimai/releases/tag/2.46.0"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/kimai/kimai/security/advisories/GHSA-jg2j-2w24-54cg"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1336"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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