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CVE-2026-55547

Estado: Pendiente de análisisMedia (4.3)—

Yamcs is a mission control framework. Prior to 5.12.8 and 5.13.2, Yamcs omits SystemPrivilege.ControlAccess checks from IamApi.listRoles, IamApi.getRole, and IamApi.listPrivileges in yamcs-core/src/main/java/org/yamcs/http/api/IamApi.java. Any authenticated account can call GET /api/roles, GET /api/roles/{name}, and GET /api/privileges to enumerate available system privileges and configured role mappings. The disclosure reveals security configuration that can support targeted privilege-escalation attempts. This issue is fixed in versions 5.12.8 and 5.13.2.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Spaceapplications — YamcsAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-55547",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-55547",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-28T20:29:51.716854Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "yamcs",
          "product": "yamcs",
          "versions": [
            {
              "status": "affected",
              "version": "< 5.12.8"
            },
            {
              "status": "affected",
              "version": ">= 5.13.0, < 5.13.2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-08-28T20:18:28.517",
  "references": [
    {
      "url": "https://github.com/yamcs/yamcs/commit/c2aec1c242e656e48b52c7f87deea88183bb592d",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/yamcs/yamcs/commit/dcaec5f0b2f4231b8e313e94d79a937169c9e0ba",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.8",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.2",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/yamcs/yamcs/security/advisories/GHSA-cvw4-55pp-3hfq",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/yamcs/yamcs/security/advisories/GHSA-cvw4-55pp-3hfq",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-285"
        },
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Yamcs is a mission control framework. Prior to 5.12.8 and 5.13.2, Yamcs omits SystemPrivilege.ControlAccess checks from IamApi.listRoles, IamApi.getRole, and IamApi.listPrivileges in yamcs-core/src/main/java/org/yamcs/http/api/IamApi.java. Any authenticated account can call GET /api/roles, GET /api/roles/{name}, and GET /api/privileges to enumerate available system privileges and configured role mappings. The disclosure reveals security configuration that can support targeted privilege-escalation attempts. This issue is fixed in versions 5.12.8 and 5.13.2."
    }
  ],
  "lastModified": "2026-09-08T21:08:37.320",
  "sourceIdentifier": "security-advisories@github.com"
}