MEDIUMCVSS v3.1 6.2Vulnerability
CVE-2026-115388
wasmtime-wasi-http in Wasmtime before 36.0.16, 37.0.0 before 48.0.3, and 49.0.0 before 49.0.1 does not enforce the wasi:io/streams check-write allowance for WASIp2 outgoing HTTP bodies, so oversized writes succeed instead of trapping. A malicious guest can pass large buffers to write on outgoing-body resources, holding host allocations for the store's lifetime and exhausting host memory.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-22T22:14:18.200859+00:00
- Cvss score
- 6.2
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-10-22T22:16:40+00:00
- Score
- 6.2
- Last source
- NVD
- Cvss version
- 3.1
- Cve id
- CVE-2026-115388
- Cvss vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- First seen by Signal
- 2026-10-22T22:12:23+00:00
- Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published at
- 2026-10-22T19:17:46.173
- Last modified
- 2026-10-22T19:17:46.290
Related Entities (1)
HAS_WEAKNESS (1)
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