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CVE-2025-4979

Estado: AnalizadaAlta (7.5)—

An issue has been discovered in GitLab CE/EE affecting all versions before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. An attacker may be able to reveal masked or hidden CI variables (that they did not author) in the WebUI, by simply creating their own variable and observing the HTTP response.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Acceso remoto a aplicación web expuesta (AV:N, PR:N, UI:N). El atacante revela variables CI enmascaradas mediante manipulación de respuestas HTTP, logrando lectura de secretos almacenados.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

User Account ManagementPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkVulnerability ScanningUser Training

Tecnologías afectadas (1)

Gitlab — Gitlab

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-4979",
  "cveTags": [],
  "metrics": {
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          "id": "CVE-2025-4979",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-22T14:21:13.148571Z"
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          "baseScore": 4.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
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        "impactScore": 3.6,
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          "product": "GitLab",
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  "published": "2025-05-22T14:16:08.617",
  "references": [
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      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/524455",
      "tags": [
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "value": "CWE-1220"
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      "value": "An issue has been discovered in GitLab CE/EE affecting all versions before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. An attacker may be able to reveal masked or hidden CI variables (that they did not author) in the WebUI, by simply creating their own variable and observing the HTTP response."
    },
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      "lang": "es",
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    }
  ],
  "lastModified": "2026-06-17T09:34:25.803",
  "configurations": [
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