MEDIUMCVSS v3.1 4.8Vulnerability
CVE-2026-115381
Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 contains an unbounded memory allocation in the wasmtime-wasi WASIp2 write-zeroes method of SinkOutputStream, the default stream used when stdout/stderr are not configured. A malicious WebAssembly guest can request huge zero-filled writes, exhausting host memory and causing denial of service.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-22T22:14:18.200859+00:00
- Cvss score
- 4.8
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-10-22T22:16:40+00:00
- Score
- 4.8
- Last source
- NVD
- Cvss version
- 3.1
- Cve id
- CVE-2026-115381
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
- First seen by Signal
- 2026-10-22T22:12:23+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
- Published at
- 2026-10-22T19:17:45.070
- Last modified
- 2026-10-22T19:17:45.180
Related Entities (1)
HAS_WEAKNESS (1)
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