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CVE-2024-1402

Estado: ModificadaMedia (4.3)—

Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post and to crash the server due to overloading when clients attempt to retrive the aforementioned post.

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)

Mattermost — Mattermost Server

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2024-1402",
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-02-22T17:55:23.358517Z"
        }
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    ],
    "cvssMetricV31": [
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        "cvssData": {
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
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          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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  "published": "2024-02-09T16:15:07.880",
  "references": [
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      "url": "https://mattermost.com/security-updates",
      "tags": [
        "Vendor Advisory"
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      "source": "responsibledisclosure@mattermost.com"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "lang": "en",
      "value": "Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post and to crash the server due to overloading when clients attempt to retrive the aforementioned post. \n\n"
    },
    {
      "lang": "es",
      "value": "Mattermost no verifica si existe una reacción de emoji personalizada al enviarla a una publicación y no limita la cantidad de emojis personalizados que se pueden agregar en una publicación, lo que permite que un atacante que envía una gran cantidad de emojis personalizados inexistentes en una publicación falle la aplicación móvil de un usuario que ve la publicación."
    }
  ],
  "lastModified": "2026-06-17T07:04:09.783",
  "configurations": [
    {
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