CVE-2026-22698 Detail
Received
This CVE record has recently been published to the CVE List and has been included within the NVD dataset. DescriptionRustCrypto: Elliptic Curves is general purpose Elliptic Curve Cryptography (ECC) support, including types and traits for representing various elliptic curve forms, scalars, points, and public/secret keys composed thereof. In versions 0.14.0-pre.0 and 0.14.0-rc.0, a critical vulnerability exists in the SM2 Public Key Encryption (PKE) implementation where the ephemeral nonce k is generated with severely reduced entropy. A unit mismatch error causes the nonce generation function to request only 32 bits of randomness instead of the expected 256 bits. This reduces the security of the encryption from a 128-bit level to a trivial 16-bit level, allowing a practical attack to recover the nonce k and decrypt any ciphertext given only the public key and ciphertext. This issue has been patched via commit e4f7778. Metrics
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Weakness Enumeration
Quick InfoCVE Dictionary Entry:CVE-2026-22698 NVD Published Date: 01/10/2026 NVD Last Modified: 01/10/2026 Source: GitHub, Inc. |
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