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    2 vulnerabilities found for tkeyclient by tillitis

    CVE-2026-32953 (GCVE-0-2026-32953)

    Vulnerability from nvd – Published: 2026-03-20 04:24 – Updated: 2026-03-20 18:08
    VLAI
    Title
    Tillitis: TKey Client has an Error in Protocol Implementation
    Summary
    Tillitis TKey Client package is a Go package for a TKey client. Versions 1.2.0 and below contain a critical bug in the tkeyclient Go module which causes 1 out of every 256 User Supplied Secrets (USS) to be silently ignored, producing the same Compound Device Identifier (CDI)—and thus the same key material—as if no USS is provided. This happens because a buffer index error overwrites the USS-enabled boolean with the first byte of the USS digest, so any USS whose hash starts with 0x00 is effectively discarded. This issue has been fixed in version 1.3.0. Users unable to upgrade immediately should switch to a USS whose hash does not begin with a zero byte.
    Severity
    4.7 (Medium)
    CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-303 - Incorrect Implementation of Authentication Algorithm
    Assigner
    References
    Impacted products
    Vendor Product Version
    tillitis tkeyclient Affected: < 1.3.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-32953 (GCVE-0-2026-32953)

    Vulnerability from cvelistv5 – Published: 2026-03-20 04:24 – Updated: 2026-03-20 18:08
    VLAI
    Title
    Tillitis: TKey Client has an Error in Protocol Implementation
    Summary
    Tillitis TKey Client package is a Go package for a TKey client. Versions 1.2.0 and below contain a critical bug in the tkeyclient Go module which causes 1 out of every 256 User Supplied Secrets (USS) to be silently ignored, producing the same Compound Device Identifier (CDI)—and thus the same key material—as if no USS is provided. This happens because a buffer index error overwrites the USS-enabled boolean with the first byte of the USS digest, so any USS whose hash starts with 0x00 is effectively discarded. This issue has been fixed in version 1.3.0. Users unable to upgrade immediately should switch to a USS whose hash does not begin with a zero byte.
    Severity
    4.7 (Medium)
    CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-303 - Incorrect Implementation of Authentication Algorithm
    Assigner
    References
    Impacted products
    Vendor Product Version
    tillitis tkeyclient Affected: < 1.3.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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