CVE-2026-118688
Last modified
CVE-2026-118688 is a high-severity vulnerability rated 7.9/10 on the CVSS scale. wasmtime-wasi in Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 re-appends a trailing slash to rename source paths, causing renameat on macOS and FreeBSD hosts to follow directory symlinks. A guest with sandbox write access can rename a relative symlink such as "up/" to move host directories into its sandbox and read or write them..
Description
wasmtime-wasi in Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 re-appends a trailing slash to rename source paths, causing renameat on macOS and FreeBSD hosts to follow directory symlinks. A guest with sandbox write access can rename a relative symlink such as "up/" to move host directories into its sandbox and read or write them.
Metrics
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-118688?
How severe is CVE-2026-118688?
How do I fix CVE-2026-118688?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-118682KaringX ClashMi through 1.0.32.1801 disables TLS certificate…7.5
- CVE-2026-118683MONAI from 1.2.0 before 1.6.1 contains a remote code executi…8.8
- CVE-2026-118684MONAI before 1.6.1 contains an insufficient integrity verifi…5.9
- CVE-2026-118685ToolJet from 3.20.2-lts before 3.20.242-lts contains an auth…6.5
- CVE-2026-118686EspoCRM before 9.3.11 and 10.x before 10.0.8 contains a deni…7.5
- CVE-2026-118687Coder before 2.29.21, 2.30.0 before 2.34.12, 2.35.0 before 2…6.5
- CVE-2026-118689OvenMediaEngine through 0.21.0 contains a denial of service …7.5
- CVE-2026-11869The WP DSGVO Tools (GDPR) WordPress plugin before 3.1.40 doe…5.3
- CVE-2026-118690Signal K Server before 2.33.0 contains a missing authenticat…9.8
- CVE-2026-118691xianyu-auto-reply-fix through 2.0.7 contains a missing autho…3.7
- CVE-2026-118692CherryTree through 1.7.2 contains an OS command injection vu…7
- CVE-2026-118693CherryTree through 1.7.2 contains a path traversal vulnerabi…4.7
Are you affected by CVE-2026-118688?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST