GHSA-8F95-V3JQ-CJ86 pymonocypher: Potential heap buffer overflow on nb_blocks in argon2i_32 when provided buffer is too small

Impact The argon2i32 implementation does not check the nbblocks size. If the caller does not provide a sufficiently large buffer based on the API contract, then argon2i32 will write past the end of the buffer and possibly corrupt the heap. Patches Fixed in 4.0.2.8, which now verifies that nbblock...

PT-2026-56852

Name of the Vulnerable Software and Affected Versions pymonocypher versions prior to 4.0.2.8 Description The argon2i 32 function fails to verify the size of the nb blocks buffer. If the provided buffer is smaller than required by the API contract, the function may write beyond the buffer...