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Product · Cloudflare

quiche

9 known vulnerabilities.

All Critical High Medium Low Exploited only Public exploit

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  • High 7.5
    CVE-2026-12523 Public exploit

    Resource exhaustion in quiche HTTP/3 and QPACK layers

    Summary Cloudflare quiche's HTTP/3 layer was discovered to be vulnerable to resource exhaustion (i.e., memory) by means of specially crafted HTTP/3 frames. Impact HTTP/3 defines multiple frame types to support HTTP message exchanges and connection management.…

    Cloudflare quiche