Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV L L P L N N L N 2.0 .0016 5.4 —
AFFECTED Product Versions Fixed utils >= 0.1.1, < 0.5.4 – —
TIMELINE Jun 3 Reserved by GitHub_M Jul 17 EXPLOIT PUBLISHED — CVE-2026-50185 (RustCrypto utils). Public exploit reference added. Jul 17 Published (CNA: GitHub_M)
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.
| Date | Event | Detail |
|---|---|---|
| June 3, 2026 | Reserved | Reserved by GitHub_M |
| July 17, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-50185 (RustCrypto utils). Public exploit reference added. |
| July 17, 2026 | Published | Published (CNA: GitHub_M) |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| RustCrypto | utils | — | >= 0.1.1, < 0.5.4 | — |
Authoritative record: CVE-2026-50185 at cve.org
Vendors: rustcrypto
Weaknesses: CWE-758
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-50185 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.