wasmtime-wasi Known Vulnerabilities & Fixes
wasmtime-wasi has 3 known security vulnerabilities in crates.io (Rust). Upgrade to version 46.0.1 or later to resolve all known issues. Data sourced from OSV, enriched with EPSS exploit probability and CISA KEV.
Low Immediate Risk
No actively exploited vulnerabilities detected. Monitor and update in your next maintenance window.
Recommended safe version: 46.0.1
Upgrading to 46.0.1 or later resolves all 3 known vulnerabilities in wasmtime-wasi. Update Cargo.toml: wasmtime-wasi = "46.0.1"
Is wasmtime-wasi in your project?
Check if you're affected and upgrade to 46.0.1 to stay secure.
Security Summary
- 9 affected version ranges have been identified across these 3 advisories.
- 100% of known issues have a published fixed version.
- Remediation: cargo update -p wasmtime-wasi
Vulnerabilities
3 unique vulnerabilities — sorted by exploitation risk (KEV → EPSS → CVSS). Click a CVE/GHSA ID for full details. First disclosed Jun 5, 2026, most recently Aug 26, 2026 (82 days apart).
| CVE / GHSA | Severity | Affected | Fixed In |
|---|---|---|---|
| CVE-2026-47261 wasmtime-wasi: WASI path_open(TRUNCATE) bypasses `FilePerms::WRITE` host restriction | HIGH | All versions | 44.0.2, 36.0.10, 24.0.9 (+4 more) |
| CVE-2026-58494 WASI hard links and renames bypass wasmtime-wasi's FilePerms for destination | MEDIUM | All versions | 24.0.11, 36.0.12, 45.0.3 (+1 more) |
| CVE-2026-54786 Wasmtime has a leak in WASIp1 `fd_renumber` implementation | LOW | All versions | 24.0.10, 45.0.2, 36.0.11 (+1 more) |
About This Data
Vulnerability data for wasmtime-wasi is sourced from the Open Source Vulnerability (OSV) database, aggregating reports from GitHub Advisory Database, NIST NVD, and ecosystem-specific sources.
CVSS (Common Vulnerability Scoring System) scores reflect exploitability and impact. EPSS (Exploit Prediction Scoring System) scores indicate the probability of exploitation within the next 30 days. Vulnerabilities marked with are listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
Related crates.io (Rust) Packages
Other packages in this ecosystem, ranked by shared vulnerabilities where available.
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