CVE-2025-54126

Description

The WebAssembly Micro Runtime's (WAMR) iwasm package is the executable binary built with WAMR VMcore which supports WebAssembly System Interface (WASI) and command line interface. In versions 2.4.0 and below, iwasm uses --addr-pool with an IPv4 address that lacks a subnet mask, allowing the system to accept all IP addresses. This can unintentionally expose the service to all incoming connections and bypass intended access restrictions. Services relying on --addr-pool for restricting access by IP may unintentionally become open to all external connections. This may lead to unauthorized access in production deployments, especially when users assume that specifying an IP without a subnet mask implies a default secure configuration. This is fixed in version 2.4.1.

Reserved 2025-07-16 | Published 2025-07-29 | Updated 2025-07-29 | Assigner GitHub_M

Problem types

CWE-668: Exposure of Resource to Wrong Sphere

Product status

< 2.4.1
affected

References

github.com/...untime/security/advisories/GHSA-vh64-mfvw-pxqp

github.com/...ommit/121232a9957a069bbb04ebda053bdc72ab409e7a

github.com/...nce/wasm-micro-runtime/releases/tag/WAMR-2.4.1

cve.org (CVE-2025-54126)

nvd.nist.gov (CVE-2025-54126)

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