CVE-2026-41509

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-121 CWE-122

Affected software

No affected versions have been published.

Timeline

Published: May 8, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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