LOWCVSS v3.1 3.8Vulnerability

CVE-2026-115393

Wasmtime before 24.0.12, 25.0.0 before 36.0.13, 37.0.0 before 46.0.2, and 47.0.0 before 47.0.3 contains a type confusion vulnerability because several Store APIs fail to validate that objects belong to the Store's Engine. Embedders mixing objects between Engines via Instance::new, StructRefPre::new, or Tag::new can trigger trampoline signature mismatches causing out-of-bounds stack writes, GC heap corruption, or panics.

Properties

Severity
LOW
Nvd fetched at
2026-10-22T22:14:18.200859+00:00
Cvss severity
LOW
Cvss score
3.8
Retrieved at
2026-10-22T22:16:40+00:00
Score
3.8
Cvss version
3.1
Last source
NVD
Cve id
CVE-2026-115393
Cvss vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L
First seen by Signal
2026-10-22T22:12:23+00:00
Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L
Published at
2026-10-22T19:17:47.033
Last modified
2026-10-22T19:17:47.150

Related Entities (1)

HAS_WEAKNESS (1)

→[Weakness]Out-of-bounds Write

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CVE-2026-115393 (CVSS v3.1 3.8) — Ninja Signal Threat Intelligence | Ninja Signal