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    2 vulnerabilities found for wolfProvider by wolfSSL Inc.

    CVE-2026-81019 (GCVE-0-2026-81019)

    Vulnerability from nvd – Published: 2026-08-28 14:42 – Updated: 2026-08-28 18:22
    VLAI
    Title
    wolfProvider reuses the AES-GCM nonce on every TLS 1.2 / DTLS 1.2 record
    Summary
    wolfProvider before 1.2.2 generates the 8-byte explicit AES-GCM nonce once when the TLS write key is set and never increments it per record. As a result every TLS 1.2 and DTLS 1.2 AES-GCM record within a connection is encrypted under an identical key and nonce pair. Reusing a GCM key and nonce discloses the keystream (the XOR of two ciphertexts equals the XOR of their plaintexts, so one known record recovers the others) and leaks the GHASH authentication key, enabling authentication tag forgery. AES-CCM, TLS 1.3, and non-TLS use of the cipher are not affected.
    Severity
    7.4 (High)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-28 18:22 UTC
    CWE
    • CWE-323 - Reusing a Nonce, Key Pair in Encryption
    Assigner
    References
    Impacted products
    Vendor Product Version
    wolfSSL Inc. wolfProvider Affected: 0 , ≤ 1.2.1 (git)
    		Create a notification for this product.
    Credits
    wolfSSL security team
    Show details on NVD website
    To clipboard 

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    CVE-2026-81019 (GCVE-0-2026-81019)

    Vulnerability from cvelistv5 – Published: 2026-08-28 14:42 – Updated: 2026-08-28 18:22
    VLAI
    Title
    wolfProvider reuses the AES-GCM nonce on every TLS 1.2 / DTLS 1.2 record
    Summary
    wolfProvider before 1.2.2 generates the 8-byte explicit AES-GCM nonce once when the TLS write key is set and never increments it per record. As a result every TLS 1.2 and DTLS 1.2 AES-GCM record within a connection is encrypted under an identical key and nonce pair. Reusing a GCM key and nonce discloses the keystream (the XOR of two ciphertexts equals the XOR of their plaintexts, so one known record recovers the others) and leaks the GHASH authentication key, enabling authentication tag forgery. AES-CCM, TLS 1.3, and non-TLS use of the cipher are not affected.
    Severity
    7.4 (High)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-28 18:22 UTC
    CWE
    • CWE-323 - Reusing a Nonce, Key Pair in Encryption
    Assigner
    References
    Impacted products
    Vendor Product Version
    wolfSSL Inc. wolfProvider Affected: 0 , ≤ 1.2.1 (git)
    		Create a notification for this product.
    Credits
    wolfSSL security team
    Show details on NVD website
    To clipboard 

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