{
  "affected": [
    {
      "affectedData": [
        {
          "product": "mailpit",
          "vendor": "axllent",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.30.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:axllent:mailpit:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EED16083-B2DE-4607-BB41-B3239D592BCF",
              "versionEndExcluding": "1.30.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mailpit is an email testing tool and API for developers. Prior to version 1.30.1, the fix for GHSA-fpxj-m5q8-fphw (CVE-2026-45710, \"Mailpit: Set a default 50MB p/m limit to prevent DoS via unlimited SMTP DATA and /api/v1/send body sizes\") wrapped only `POST /api/v1/send` with `http.MaxBytesReader`. The four other Mailpit JSON-body API endpoints  `PUT /api/v1/messages` (SetReadStatus), `DELETE /api/v1/messages` (DeleteMessages), `PUT /api/v1/tags` (SetMessageTags), and `POST /api/v1/message/{id}/release` (ReleaseMessage)  still call `json.NewDecoder(r.Body)` directly with no body-size cap and remain reachable unauthenticated in the default `docker run axllent/mailpit:latest` deploy. An unauthenticated remote attacker can post a multi-million-element `IDs` slice and drive RSS from ~25 MiB baseline to ~450 MiB per 16 MB request body. Repeating across multiple connections accumulates the same per-request amplification per process. Version 1.30.1 contains a patch."
    },
    {
      "lang": "es",
      "value": "Mailpit es una herramienta de prueba de correo electr\u00f3nico y una API para desarrolladores. Antes de la versi\u00f3n 1.30.1, la correcci\u00f3n para GHSA-fpxj-m5q8-fphw (CVE-2026-45710, \u2019Mailpit: Establecer un l\u00edmite predeterminado de 50 MB p/m para prevenir DoS a trav\u00e9s de tama\u00f1os de cuerpo ilimitados de SMTP DATA y /api/v1/send\u2019) envolvi\u00f3 solo \u201cPOST /api/v1/send\u201d con \u201chttp.MaxBytesReader\u201d. Los otros cuatro endpoints de la API de Mailpit con cuerpo JSON \u201cPUT /api/v1/messages\u201d (SetReadStatus), \u201cDELETE /api/v1/messages\u201d (DeleteMessages), \u201cPUT /api/v1/tags\u201d (SetMessageTags) y \u201cPOST /api/v1/message/{id}/release\u201d (ReleaseMessage) todav\u00eda llaman a \u201cjson.NewDecoder(r.Body)\u201d directamente sin l\u00edmite de tama\u00f1o de cuerpo y permanecen accesibles sin autenticaci\u00f3n en el despliegue predeterminado de \u201cdocker run axllent/mailpit:latest\u201d. Un atacante remoto no autenticado puede publicar un slice \u201cIDs\u201d de varios millones de elementos y llevar el RSS de una l\u00ednea base de ~25 MiB a ~450 MiB por cuerpo de solicitud de 16 MB. La repetici\u00f3n a trav\u00e9s de m\u00faltiples conexiones acumula la misma amplificaci\u00f3n por solicitud por proceso. La versi\u00f3n 1.30.1 contiene un parche."
    }
  ],
  "id": "CVE-2026-48824",
  "lastModified": "2026-10-24T20:10:00.137",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-48824",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-20T19:01:37.901255Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-20T16:17:03.080",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/axllent/mailpit/releases/tag/v1.30.1"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/axllent/mailpit/security/advisories/GHSA-28pq-6qxg-wg5r"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}