CVE-2026-41509 — Integer underflow in crypto_sign_open() leads to buffer overflow
CROSS implementation contains reference and optimized implementations of the CROSS post-quantum signature algorithm. Prior to commit fc6b7e7, there is a buffer overflow in crypt…
Published: 2026-05-08 · CVSS: 6.9 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7