CVEvulnerability

CVE-2026-41509

6.9 MEDIUM Published 2026-05-08 Modified 2026-10-26 Official page ↗
Status
Analyzed
Published
2026-05-08
Last modified
2026-10-26
Assigner
[email protected]
CVSS 4.0 ([email protected])
6.9 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-121, CWE-122

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.

Affected configurations

• cross-crypto cross-implementation (< 2026-03-23)

Related

Weakness · CWE (2)

  • CWE-121 Stack-based Buffer Overflow weakness
  • CWE-122 Heap-based Buffer Overflow weakness

References