FKIE_CVE-2026-30837

Vulnerability from fkie_nvd - Published: 2026-03-10 21:16 - Updated: 2026-06-17 10:33
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation and client-server communication. Prior to 1.4.26 , t.String({ format: 'url' }) is vulnerable to ReDoS. Repeating a partial url format (protocol and hostname) multiple times cause regex to slow down significantly. This vulnerability is fixed in 1.4.26.
References
security-advisories@github.comhttps://github.com/EdamAme-x/elysia-poc-redosExploit
security-advisories@github.comhttps://github.com/elysiajs/elysia/security/advisories/GHSA-f45g-68q3-5w8xMitigation, Vendor Advisory
Impacted products
Vendor Product Version
elysiajs elysia *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "elysia",
          "vendor": "elysiajs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.4.26"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:elysiajs:elysia:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "BCA3E495-B827-4E49-9B9A-375FBF6F20B9",
              "versionEndExcluding": "1.4.26",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation and client-server communication. Prior to 1.4.26 , t.String({ format: \u0027url\u0027 }) is vulnerable to ReDoS. Repeating a partial url format (protocol and hostname) multiple times cause regex to slow down significantly. This vulnerability is fixed in 1.4.26."
    },
    {
      "lang": "es",
      "value": "Elysia es un framework de Typescript para validaci\u00f3n de solicitudes, inferencia de tipos, documentaci\u00f3n OpenAPI y comunicaci\u00f3n cliente-servidor. Antes de la 1.4.26, t.String({ format: \u0027url\u0027 }) es vulnerable a ReDoS. Repetir un formato de url parcial (protocolo y nombre de host) varias veces causa que la expresi\u00f3n regular se ralentice significativamente. Esta vulnerabilidad est\u00e1 corregida en la 1.4.26."
    }
  ],
  "id": "CVE-2026-30837",
  "lastModified": "2026-06-17T10:33:00.227",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "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:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-30837",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-03-11T15:32:36.602461Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-03-10T21:16:47.070",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit"
      ],
      "url": "https://github.com/EdamAme-x/elysia-poc-redos"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/elysiajs/elysia/security/advisories/GHSA-f45g-68q3-5w8x"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1333"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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