FKIE_CVE-2026-27807

Vulnerability from fkie_nvd - Published: 2026-03-06 04:16 - Updated: 2026-03-12 17:22
Severity ?
4.9 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Summary
MarkUs is a web application for the submission and grading of student assignments. Prior to version 2.9.4, MarkUs allows course instructors to upload YAML files to create/update various entities (e.g., assignment settings). These YAML files are parsed with aliases enabled. This issue has been patched in version 2.9.4.
References
security-advisories@github.comhttps://github.com/MarkUsProject/Markus/releases/tag/v2.9.4Product, Release Notes
security-advisories@github.comhttps://github.com/MarkUsProject/Markus/security/advisories/GHSA-m9rx-85mx-q9h6Vendor Advisory
Impacted products
Vendor Product Version
markusproject markus *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:markusproject:markus:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "68B46CED-C806-4F2A-B1C6-727EE540E7A2",
              "versionEndExcluding": "2.9.4",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "MarkUs is a web application for the submission and grading of student assignments. Prior to version 2.9.4, MarkUs allows course instructors to upload YAML files to create/update various entities (e.g., assignment settings). These YAML files are parsed with aliases enabled. This issue has been patched in version 2.9.4."
    },
    {
      "lang": "es",
      "value": "MarkUs es una aplicaci\u00f3n web para la entrega y calificaci\u00f3n de tareas de estudiantes. Antes de la versi\u00f3n 2.9.4, MarkUs permite a los instructores del curso cargar archivos YAML para crear/actualizar varias entidades (por ejemplo, configuraciones de tareas). Estos archivos YAML se analizan con alias habilitados. Este problema ha sido parcheado en la versi\u00f3n 2.9.4."
    }
  ],
  "id": "CVE-2026-27807",
  "lastModified": "2026-03-12T17:22:20.530",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 4.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-06T04:16:07.810",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "url": "https://github.com/MarkUsProject/Markus/releases/tag/v2.9.4"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/MarkUsProject/Markus/security/advisories/GHSA-m9rx-85mx-q9h6"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-776"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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