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CVE-2026-51583

Full vulnerability record from the local CVENow database.

Description

An issue in usememos through v0.30.0 allows a remote authenticated attacker to perform Server-Side Request Forgery (SSRF) via the Webhook validation mechanism in internal/webhook/validate.go, by setting a webhook target to an internal address.

Severity
HIGH
CVSS score
8.5 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-08-11 14:17:14.323000
Last modified
2026-10-24 16:10:00.153000
View original CVE JSON
{
  "id": "CVE-2026-51583",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-11T14:17:14.323",
  "lastModified": "2026-10-24T16:10:00.153",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue in usememos through v0.30.0 allows a remote authenticated attacker to perform Server-Side Request Forgery (SSRF) via the Webhook validation mechanism in internal/webhook/validate.go, by setting a webhook target to an internal address."
    },
    {
      "lang": "es",
      "value": "Un problema en usememos hasta la v0.30.0 permite a un atacante remoto autenticado realizar Falsificación de Petición del Lado del Servidor (SSRF) a través del mecanismo de validación de Webhook en internal/webhook/validate.go, al establecer un objetivo de webhook a una dirección interna."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "version": "n/a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
          "baseScore": 8.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 4.7
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-12T18:26:27.732485Z",
          "id": "CVE-2026-51583",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://gist.github.com/seiyaibuki0523/d8af15eb555808319a2633269a9ebb80",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/usememos/memos",
      "source": "[email protected]"
    },
    {
      "url": "https://gist.github.com/seiyaibuki0523/d8af15eb555808319a2633269a9ebb80",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}