CROSS-signature/CROSS-implementation

CROSS-signature/CROSS-implementation

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Reference and optimized implementations of the CROSS post-quantum signature algorithm
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CVE History

CVEPublishedCVSS v3CVSS v2
CVE-2026-41509↗
9.8 CRITICAL—

CROSS implementation contains reference and optimized implementations of the CROSS post-quantum signature algorithm. Prior to commit fc6b7e7, there is a buffer overflow in crypto_sign_open() caused by an underflow of the integer mlen. This issue has been patched via commit fc6b7e7.