DEBIAN-CVE-2026-50185

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Source
https://security-tracker.debian.org/tracker/CVE-2026-50185
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-50185.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-50185
Upstream
Published
2026-07-17T19:17:16Z
Modified
2026-09-14T17:03:43Z
Severity
  • 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

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. From 0.1.1 until 0.5.4, the aarch64 implementations of Cmov and CmovEq in cmov/src/backends/aarch64.rs assume high bits are zero-extended when loading values smaller than a register, so set high bits such as [8..] in a Cmov selector or [16..] of self or other in the u16 and i16 CmovEq implementations can cause left.cmovz(&right, condition) to produce incorrect output. This issue is fixed in version 0.5.4.

References

Affected packages

Debian:14 / rust-cmov

Package

Name
rust-cmov
Purl
pkg:deb/debian/rust-cmov?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.5.4-1

Affected versions

0.*
0.5.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-50185.json"