CVE-2026-115392

highpriority · track · 32EPSS 0.002 · 14 %ileUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.24% (14th) EPSS

CVSS 7.9 · high

Is it mine?

4 products

Check your exposure

Who says so?

1 sources

osv

EPSS · scored 2026-10-23

Wasmtime before 24.0.13, 25.0.0 before 36.0.14, 37.0.0 before 46.0.3, and 47.0.0 before 47.0.4 allows a filesystem sandbox escape in wasmtime-wasi because its cap-std dependency mishandles symlinks with trailing slashes on macOS and Linux kernels lacking openat2. A guest with write access to any sandboxed directory can read and write any host-accessible file, and read-only guests may read host files via preexisting symlinks.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.8–8.8

v3.17.9highCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:Lprimary · disclosure@vulncheck.comexploitability 1.3 · impact 6

v4.08.8highCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · disclosure@vulncheck.com

v4.05.8mediumCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-61USprimaryCWE-61US

affected products (4)

Products and version ranges known to be affected.

crates.io wasmtime0.0.0-0 → 24.0.13osvUSpkg:cargo/wasmtime
crates.io wasmtime25.0.0 → 36.0.14osvUSpkg:cargo/wasmtime
crates.io wasmtime37.0.0 → 46.0.3osvUSpkg:cargo/wasmtime
crates.io wasmtime47.0.0 → 47.0.4osvUSpkg:cargo/wasmtime

advisories (1)

Vendor and ecosystem advisories describing this.

RUSTSEC-2026-0269Filesystem sandbox escape when paths or symlinks contain trailing slashes2026-08-20vendor · osvUS
This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-vqjp-4c8c-hfgg For more information see the GitHub-hosted security advisory.

also known as (1)

Other names and identifiers for this entity.

GHSA-vqjp-4c8c-hfgg osv

sources

Which sources assert this record, and when.

osv NVD CVE.org MITRE

published 2026-10-22modified 2026-10-22

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+222 more

references (2) nvd

External citations — patches, advisories, analysis.

scry

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