p PatchFirst

CVE-2026-58483

CVE-2026-58483 · mcp-searxng: Unbounded Response Body Read Bypasses URL Size Limit in `web_url_read`

Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.

mcp-searxng is a Model Context Protocol server that gives AI assistants web search and URL-reading capabilities through SearXNG. Prior to 1.7.1, web_url_read in src/index.ts passes a caller-supplied URL to readUrlContent() in src/url-reader.ts, where checkContentLength() treats a missing Content-Length header as an inconclusive preflight and the normal and error paths then consume the complete body with response.text(). A server that omits Content-Length can therefore bypass URL_READ_MAX_CONTENT_LENGTH_BYTES and force unbounded memory use. The resulting string is also processed by NodeHtmlMarkdown.translate(), increasing CPU consumption and allowing an unauthenticated HTTP client to cause denial of service. This issue is fixed in version 1.7.1.

CVSS 7.5 · Élevée · EPSS 0,7% · Correctif disponible

Publication
Mise à jour

Pile logicielle: node

Produits et versions concernés

  • mcp-searxng

    Versions du logiciel
    • < 1.7.1: Concernée

    Aucun correctif publié

  • mcp-searxng npm

    Plages de versions concernées
    • SEMVER: < 1.7.1

    Mettez à jour vers 1.7.1

Sources originales

Vérifiez votre serveur →