CVE•Published 2026-07-08•Modified 2026-07-10•0 articles on news•5 live references•NVD data
CVE-2026-58494
Vulnerability data via NVD (ingested)
CVSS v3.1
6.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
EPSS percentile
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Description
Wasmtime is a runtime for WebAssembly. Prior to 24.0.11, 36.0.12, 45.0.3, and 46.0.1, wasmtime-wasi hard-link creation and renaming check directory permissions but not matching FilePerms on source and destination preopens, allowing a WASI guest with a read-only source file capability to overwrite host files exposed as FilePerms::READ through wasip1, wasip2, or wasip3 filesystem interfaces. This issue is fixed in versions 24.0.11, 36.0.12, 45.0.3, and 46.0.1.
Timeline
Published 2026-07-08
Modified 2026-07-10
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-58494Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-58494Censys host search filtered to this CVE id.
grep.app
CVE-2026-58494Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-58494GitHub code search for direct mentions.
Google dork
"CVE-2026-58494" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-58494 on GitHub.
We haven't classified any articles referencing CVE-2026-58494 yet. The external references above still apply.