CVE-2026-47261
WASI path_open(TRUNCATE) bypasses `FilePerms::WRITE` host restriction
7.5
HIGH
CVSS 3.1
Description
This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-2r75-cxrj-cmph For more information see the GitHub-hosted security advisory.
How to fix CVE-2026-47261
To remediate CVE-2026-47261, upgrade the affected package to a fixed version below.
- crates.io/wasmtime-wasi—upgrade to 44.0.2 or later
- crates.io/wasmtime-wasi—upgrade to 24.0.9 or later
Is CVE-2026-47261 being exploited?
No exploitation signal available. Neither CISA KEV nor a current EPSS score has been published for CVE-2026-47261.
Affected packages (2)
- >= 37.0.0, < 44.0.2
- >= 0.0.0-0, < 24.0.9, >= 25.0.0, < 36.0.10, >= 37.0.0, < 44.0.2, >= 45.0.0, < 45.0.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |