Insufficient Control Flow Management Affecting wasmcloud package, versions <2.10.3-r3


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

Social Trends
EPSS
0.99% (63rd percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-WASMCLOUD-22100481
  • published31 Oct 2026
  • disclosed23 Oct 2026

Introduced: 23 Oct 2026

NewCVE-2026-115893  (opens in a new tab)
CWE-691  (opens in a new tab)

How to fix?

Upgrade Chainguard wasmcloud to version 2.10.3-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream wasmcloud package and not the wasmcloud package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Wasmtime is a runtime for WebAssembly. Prior to 36.0.19, 48.0.7, and 49.0.4, the Cranelift compiler backend on aarch64 can compile a Wasm br_table instruction with more than approximately 256,000 targets so that it has an incorrect conditional branch target. The branch can then jump to arbitrary other code at a user-controlled offset, allowing a user-controlled Wasm module to escape the sandbox on aarch64 engines using the default Cranelift backend. This issue is fixed in versions 36.0.19, 48.0.7, and 49.0.4.

CVSS Base Scores

version 3.1