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CVE-2026-115393

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 Cross-Engine Type Confusion

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 1.0 · Low · EPSS 0.1% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • wasmtime

    Versions
    • ≥ 0, < 24.0.12: Affected (semver)
    • 24.0.12: Not affected (semver)
    • ≥ 25.0.0, < 36.0.13: Affected (semver)
    • 36.0.13: Not affected (semver)
    • ≥ 37.0.0, < 46.0.2: Affected (semver)
    • 46.0.2: Not affected (semver)
    • ≥ 47.0.0, < 47.0.3: Affected (semver)
    • 47.0.3: Not affected (semver)

    Update to 24.0.12; Update to 36.0.13; Update to 46.0.2; Update to 47.0.3

  • rust-wasmtime Debian:13

    Versions
    • 26.0.1+dfsg-10
    • 26.0.1+dfsg-3
    • 26.0.1+dfsg-4
    • 26.0.1+dfsg-5
    • 26.0.1+dfsg-6
    • 26.0.1+dfsg-7
    • 26.0.1+dfsg-8
    • 26.0.1+dfsg-9
    • 27.0.0+dfsg-2
    • 27.0.0+dfsg-3
    • 27.0.0+dfsg-4
    • 28.0.1+dfsg-1
    • 28.0.1+dfsg-2
    • 28.0.1+dfsg-3
    • 29.0.1+dfsg-1
    • 29.0.1+dfsg-2
    • 29.0.1+dfsg-3
    • 29.0.1+dfsg-4
    • 29.0.1+dfsg-5
    • 29.0.1+dfsg-6
    • 29.0.1+dfsg-7
    • 29.0.1+dfsg-8
    • 36.0.11+dfsg-1
    • 36.0.12+dfsg-1
    • 36.0.12+dfsg-2
    • 36.0.12+dfsg-3
    • 36.0.13+dfsg-1
    • 36.0.5+dfsg-1
    • 36.0.5+dfsg-2
    • 36.0.5+dfsg-3
    • 36.0.5+dfsg-4
    • 36.0.5+dfsg-5
    • 36.0.6+dfsg-1
    • 36.0.6+dfsg-2
    • 36.0.6+dfsg-3
    • 36.0.6+dfsg-4
    • 36.0.6+dfsg-5
    • 36.0.6+dfsg-6
    • 36.0.6+dfsg-7
    • 36.0.7+dfsg-1
    • 36.0.8+dfsg-1
    • 36.0.9+dfsg-1
    • 36.0.9+dfsg-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rust-wasmtime Debian:14

    Versions
    • 26.0.1+dfsg-10
    • 26.0.1+dfsg-3
    • 26.0.1+dfsg-4
    • 26.0.1+dfsg-5
    • 26.0.1+dfsg-6
    • 26.0.1+dfsg-7
    • 26.0.1+dfsg-8
    • 26.0.1+dfsg-9
    • 27.0.0+dfsg-2
    • 27.0.0+dfsg-3
    • 27.0.0+dfsg-4
    • 28.0.1+dfsg-1
    • 28.0.1+dfsg-2
    • 28.0.1+dfsg-3
    • 29.0.1+dfsg-1
    • 29.0.1+dfsg-2
    • 29.0.1+dfsg-3
    • 29.0.1+dfsg-4
    • 29.0.1+dfsg-5
    • 29.0.1+dfsg-6
    • 29.0.1+dfsg-7
    • 29.0.1+dfsg-8
    • 36.0.11+dfsg-1
    • 36.0.12+dfsg-1
    • 36.0.12+dfsg-2
    • 36.0.12+dfsg-3
    • 36.0.5+dfsg-1
    • 36.0.5+dfsg-2
    • 36.0.5+dfsg-3
    • 36.0.5+dfsg-4
    • 36.0.5+dfsg-5
    • 36.0.6+dfsg-1
    • 36.0.6+dfsg-2
    • 36.0.6+dfsg-3
    • 36.0.6+dfsg-4
    • 36.0.6+dfsg-5
    • 36.0.6+dfsg-6
    • 36.0.6+dfsg-7
    • 36.0.7+dfsg-1
    • 36.0.8+dfsg-1
    • 36.0.9+dfsg-1
    • 36.0.9+dfsg-2
    Affected ranges
    • ECOSYSTEM: < 36.0.13+dfsg-1

    Update to 36.0.13+dfsg-1

Original sources

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