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    2 vulnerabilities by jmlepisto

    CVE-2026-24785 (GCVE-0-2026-24785)

    Vulnerability from nvd – Published: 2026-01-27 23:38 – Updated: 2026-01-28 15:10
    VLAI
    Title
    Clatter has a PSK Validity Rule Violation issue
    Summary
    Clatter is a no_std compatible, pure Rust implementation of the Noise protocol framework with post-quantum support. Versiosn prior to2.2.0 have a protocol compliance vulnerability. The library allowed post-quantum handshake patterns that violated the PSK validity rule (Noise Protocol Framework Section 9.3). This could allow PSK-derived keys to be used for encryption without proper randomization by self-chosen ephemeral randomness, weakening security guarantees and potentially allowing catastrophic key reuse. Affected default patterns include `noise_pqkk_psk0`, `noise_pqkn_psk0`, `noise_pqnk_psk0`, `noise_pqnn_psk0``, and some hybrid variants. Users of these patterns may have been using handshakes that do not meet the intended security properties. The issue is fully patched and released in Clatter v2.2.0. The fixed version includes runtime checks to detect offending handshake patterns. As a workaround, avoid using offending `*_psk0` variants of post-quantum patterns. Review custom handshake patterns carefully.
    Severity
    8 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
    Assigner
    References
    Impacted products
    Vendor Product Version
    jmlepisto clatter Affected: < 2.2.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-24785 (GCVE-0-2026-24785)

    Vulnerability from cvelistv5 – Published: 2026-01-27 23:38 – Updated: 2026-01-28 15:10
    VLAI
    Title
    Clatter has a PSK Validity Rule Violation issue
    Summary
    Clatter is a no_std compatible, pure Rust implementation of the Noise protocol framework with post-quantum support. Versiosn prior to2.2.0 have a protocol compliance vulnerability. The library allowed post-quantum handshake patterns that violated the PSK validity rule (Noise Protocol Framework Section 9.3). This could allow PSK-derived keys to be used for encryption without proper randomization by self-chosen ephemeral randomness, weakening security guarantees and potentially allowing catastrophic key reuse. Affected default patterns include `noise_pqkk_psk0`, `noise_pqkn_psk0`, `noise_pqnk_psk0`, `noise_pqnn_psk0``, and some hybrid variants. Users of these patterns may have been using handshakes that do not meet the intended security properties. The issue is fully patched and released in Clatter v2.2.0. The fixed version includes runtime checks to detect offending handshake patterns. As a workaround, avoid using offending `*_psk0` variants of post-quantum patterns. Review custom handshake patterns carefully.
    Severity
    8 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
    Assigner
    References
    Impacted products
    Vendor Product Version
    jmlepisto clatter Affected: < 2.2.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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