CVE-2026-115384
bytecodealliance wasmtime
- bytecodealliance wasmtime
- Critical
- CVSS 9.4
- EPSS 0.31%
- Fixed version listed
What to do
Fixed version listed
Affected products
| Product | Affected | Fixed in |
|---|---|---|
| bytecodealliance wasmtime | from 39.0.0, before 48.0.4; from 49.0.0, before 49.0.2 | 48.0.4, 49.0.2 |
Advisories and fixes
- Vendor advisory github.com
Scores and signals
- Exploitation
- No known exploitation
- Severity
- Critical, CVSS 9.4 (v4.0, scored by VulnCheck)
- EPSS
- 0.31% chance of exploitation in the next 30 days (EPSS from FIRST, as of Oct 23, 2026)
- Weakness
- CWE-20: Improper Input Validation
- Vendor
- bytecodealliance, wasmtime
Timeline
- First listed as critical by cve.now. Affected and fixed versions come from the CVE record, once one is published.