CVEvulnerability
CVE-2026-119143
5.9 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-10-29
- Last modified
- 2026-10-29
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 5.9 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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:X
- CVSS 3.1 ([email protected])
- 4.8 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-129
Description
Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability that allows guest code to trigger a host panic through out-of-bounds zero-length stream operations. Malicious guests can perform zero-length component model stream reads or writes with unvalidated addresses, causing Direct{Source,Destination}::remaining to panic and crash WASIp3 embedders.
Related
Weakness · CWE (1)
- CWE-129 Improper Validation of Array Index weakness