CVE-2026-24850— RustCrypto signatures 数据伪造问题漏洞

ML-DSA Signature Verification Accepts Signatures with Repeated Hint Indices

The ML-DSA crate is a Rust implementation of the Module-Lattice-Based Digital Signature Standard (ML-DSA). Starting in version 0.0.4 and prior to version 0.1.0-rc.4, the ML-DSA signature verification implementation in the RustCrypto `ml-dsa` crate incorrectly accepts signatures with repeated (duplicate) hint indices. According to the ML-DSA specification (FIPS 204 / RFC 9881), hint indices within each polynomial must be **strictly increasing**. The current implementation uses a non-strict monotonic check (`<=` instead of `<`), allowing duplicate indices. This is a regression bug. The original implementation was correct, but a commit in version 0.0.4 inadvertently changed the strict `<` comparison to `<=`, introducing the vulnerability. Version 0.1.0-rc.4 fixes the issue.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

密码学签名的验证不恰当

RustCrypto signatures 数据伪造问题漏洞

RustCrypto signatures是RustCrypto开源的一个数字签名算法集合。 RustCrypto signatures 0.0.4版本至0.1.0-rc.4之前版本存在数据伪造问题漏洞，该漏洞源于签名验证实现错误地接受重复提示索引，可能导致签名验证绕过。

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