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Vulnerability DatabaseCVE-2026-23519

CVE-2026-23519: 
Rust vulnerability analysis and mitigation

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.

Source: NVD

Related Rust vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-22863CRITICAL9.2
  • RustRust
  • deno
NoYesJan 15, 2026
CVE-2026-23519HIGH8.9
  • RustRust
  • yazi
NoYesJan 15, 2026
RUSTSEC-2026-0003HIGH8.9
  • RustRust
  • cmov
NoYesJan 14, 2026
CVE-2026-22864HIGH8.1
  • RustRust
  • deno
NoYesJan 15, 2026
CVE-2026-22782LOW2.9
  • RustRust
  • rustfs
NoYesJan 16, 2026

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