Description

RustCrypto CMOV provides conditional move CPU intrinsics which are guaranteed on major platforms to execute in constant-time and not be rewritten as branches by the compiler. Prior to 0.4.4, the thumbv6m-none-eabi (Cortex M0, M0+ and M1) compiler emits non-constant time assembly when using cmovnz (portable version). This vulnerability is fixed in 0.4.4.

INFO

Published Date :

2026-01-15T19:13:54.440Z

Last Modified :

2026-01-15T19:57:48.741Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-23519 vulnerability.

Vendors Products
Rustcrypto
  • Cmov
  • Utils
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-23519.

URL Resource
https://github.com/RustCrypto/utils/commit/55977257e7c82a309d5e8abfdd380a774f0f9778 cve-icon cve-icon
https://github.com/RustCrypto/utils/security/advisories/GHSA-2gqc-6j2q-83qp cve-icon cve-icon cve-icon
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