« Volver al listado

CVE-2025-30204

Estado: AplazadaAlta (7.5)—

golang-jwt is a Go implementation of JSON Web Tokens. Starting in version 3.2.0 and prior to versions 5.2.2 and 4.5.2, the function parse.ParseUnverified splits (via a call to strings.Split) its argument (which is untrusted data) on periods. As a result, in the face of a malicious request whose Authorization header consists of Bearer followed by many period characters, a call to that function incurs allocations to the tune of O(n) bytes (where n stands for the length of the function's argument), with a constant factor of about 16. This issue is fixed in 5.2.2 and 4.5.2.

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).

🎯 Técnicas ATT&CK

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

AV:N sin autenticación permite explotación remota de aplicación expuesta; Bearer token malformado causa asignaciones O(n) masivas generando DoS por consumo de recursos.

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

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

Tecnologías afectadas (1)

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

Golang-jwt — Golang-jwtAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-30204",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-30204",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-03-24T14:10:18.281694Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "golang-jwt",
          "product": "jwt",
          "versions": [
            {
              "status": "affected",
              "version": ">= 3.2.0, < 4.5.2"
            },
            {
              "status": "affected",
              "version": ">= 5.0.0-rc.1, < 5.2.2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-03-21T22:15:26.420",
  "references": [
    {
      "url": "https://github.com/golang-jwt/jwt/commit/0951d184286dece21f73c85673fd308786ffe9c3",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/golang-jwt/jwt/commit/bf316c48137a1212f8d0af9288cc9ce8e59f1afb",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/golang-jwt/jwt/security/advisories/GHSA-mh63-6h87-95cp",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20250404-0002/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-405"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "golang-jwt is a Go implementation of JSON Web Tokens. Starting in version 3.2.0 and prior to versions 5.2.2 and 4.5.2, the function parse.ParseUnverified splits (via a call to strings.Split) its argument (which is untrusted data) on periods. As a result, in the face of a malicious request whose Authorization header consists of Bearer  followed by many period characters, a call to that function incurs allocations to the tune of O(n) bytes (where n stands for the length of the function's argument), with a constant factor of about 16. This issue is fixed in 5.2.2 and 4.5.2."
    },
    {
      "lang": "es",
      "value": "golang-jwt es una implementación de Go de tokens web JSON. En versiones anteriores a la 5.2.2 y la 4.5.2, la función parse.ParseUnverified divide (mediante una llamada a strings.Split) su argumento (que contiene datos no confiables) en puntos. Como resultado, ante una solicitud maliciosa cuyo encabezado de autorización consiste en \"Bearer\" seguido de muchos puntos, una llamada a dicha función genera asignaciones de O(n) bytes (donde n representa la longitud del argumento de la función), con un factor constante de aproximadamente 16. Este problema se solucionó en las versiones 5.2.2 y 4.5.2."
    }
  ],
  "lastModified": "2026-06-17T09:08:21.100",
  "sourceIdentifier": "security-advisories@github.com"
}