CVE-2026-34526

{
  "id": "CVE-2026-34526",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-34526",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-02T17:47:59.886274Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.1
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "SillyTavern",
          "product": "SillyTavern",
          "versions": [
            {
              "status": "affected",
              "version": "< 1.17.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-04-02T18:16:29.917",
  "references": [
    {
      "url": "https://github.com/SillyTavern/SillyTavern/releases/tag/1.17.0",
      "tags": [
        "Release Notes"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-wm7j-m6jm-8797",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-wm7j-m6jm-8797",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "SillyTavern is a locally installed user interface that allows users to interact with text generation large language models, image generation engines, and text-to-speech voice models. Prior to version 1.17.0, in src/endpoints/search.js, the hostname is checked against /^\\d+\\.\\d+\\.\\d+\\.\\d+$/. This only matches literal dotted-quad IPv4 (e.g. 127.0.0.1, 10.0.0.1). It does not catch: localhost (hostname, not dotted-quad), [::1] (IPv6 loopback), and DNS names resolving to internal addresses (e.g. localtest.me -> 127.0.0.1). A separate port check (urlObj.port !== '') limits exploitation to services on default ports (80/443), making this lower severity than a fully unrestricted SSRF. This issue has been patched in version 1.17.0."
    },
    {
      "lang": "es",
      "value": "SillyTavern es una interfaz de usuario instalada localmente que permite a los usuarios interactuar con modelos de lenguaje grandes de generación de texto, motores de generación de imágenes y modelos de voz de texto a voz. Antes de la versión 1.17.0, en src/endpoints/search.js, el nombre de host se verifica contra /^\\d+\\.\\d+\\.\\d+\\.\\d+$/. Esto solo coincide con IPv4 literal en formato de cuarteto de puntos (p. ej., 127.0.0.1, 10.0.0.1). No detecta: localhost (nombre de host, no cuarteto de puntos), [::1] (bucle invertido IPv6) y nombres DNS que resuelven a direcciones internas (p. ej., localtest.me  ->  127.0.0.1). Una verificación de puerto separada (urlObj.port !== '') limita la explotación a servicios en puertos predeterminados (80/443), haciendo que esto sea de menor gravedad que un SSRF completamente sin restricciones. Este problema ha sido parcheado en la versión 1.17.0."
    }
  ],
  "lastModified": "2026-07-24T21:10:00.143",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sillytavern:sillytavern:*:*:*:*:*:node.js:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7E2E14B3-75EF-4DC4-84BE-8C2F5D6949A4",
              "versionEndExcluding": "1.17.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}