LOWCVSS v3.1 2.3Vulnerability
CVE-2026-115389
Wasmtime before 36.0.16, 37.0.0 before 48.0.3, and 49.0.0 before 49.0.1 does not adequately account for host allocations when lifting guest values through the dynamically-typed Val API, bypassing the hostcall fuel limit. A malicious WebAssembly guest can return crafted values that allocate at least ~100x more host memory than tracked, causing denial of service.
Properties
- Severity
- LOW
- Nvd fetched at
- 2026-10-22T22:14:18.200859+00:00
- Cvss severity
- LOW
- Cvss score
- 2.3
- Retrieved at
- 2026-10-22T22:16:40+00:00
- Score
- 2.3
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-115389
- Cvss vector
- CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L
- First seen by Signal
- 2026-10-22T22:12:23+00:00
- Vector
- CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L
- Published at
- 2026-10-22T19:17:46.330
- Last modified
- 2026-10-22T19:17:46.453
Related Entities (1)
HAS_WEAKNESS (1)
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