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    2 vulnerabilities found for cross-implementation by cross-crypto

    CVE-2026-41509 (GCVE-0-2026-41509)

    Vulnerability from nvd – Published: 2026-05-08 13:47 – Updated: 2026-05-08 14:15
    VLAI
    Title
    Integer underflow in crypto_sign_open() leads to buffer overflow
    Summary
    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.
    Severity
    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
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    • CWE-122 - Heap-based Buffer Overflow
    Assigner
    References
    Impacted products
    Vendor Product Version
    CROSS-signature CROSS-implementation Affected: < fc6b7e78cdf789bb5c395a81dc601356f1383da0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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        "title": "CISA ADP Vulnrichment"
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      ],
      "metrics": [
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    CVE-2026-41509 (GCVE-0-2026-41509)

    Vulnerability from cvelistv5 – Published: 2026-05-08 13:47 – Updated: 2026-05-08 14:15
    VLAI
    Title
    Integer underflow in crypto_sign_open() leads to buffer overflow
    Summary
    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.
    Severity
    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
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    • CWE-122 - Heap-based Buffer Overflow
    Assigner
    References
    Impacted products
    Vendor Product Version
    CROSS-signature CROSS-implementation Affected: < fc6b7e78cdf789bb5c395a81dc601356f1383da0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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