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    2 vulnerabilities found for runwasi by containerd

    CVE-2026-47218 (GCVE-0-2026-47218)

    Vulnerability from nvd – Published: 2026-10-15 18:16 – Updated: 2026-10-15 19:55
    VLAI
    Title
    runwasi: Forged Wasmtime precompiled OCI layer bypasses runwasi WASI sandbox
    Summary
    runwasi facilitates running Wasm and WASI workloads managed by containerd. Prior to 0.6.1, containerd-shim-wasmtime-v1 can treat Wasmtime precompiled bytes supplied directly in an OCI image layer as a trusted artifact from the precompile-cache path and deserialize them as native code. An attacker who causes a victim to run a crafted image can bypass WebAssembly validation and execute native code in the shim zygote process, gaining the filesystem, environment, credentials, networking, and Linux syscall access available to the workload container. Downstream shims built with runwasi's containerd-shim-wasm precompile-cache API are also affected if they implement Compiler and trust executable precompiled artifacts from OCI image layers; the 0.6.1 boundary applies specifically to containerd-shim-wasmtime and does not independently certify downstream product releases. The flaw escapes the WASI sandbox to the workload container boundary, but it does not by itself bypass container isolation or provide direct host code execution. This issue is fixed in version 0.6.1.
    Severity
    9.3 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-10-15 19:55 UTC
    CWE
    • CWE-502 - Deserialization of Untrusted Data
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7760 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    containerd runwasi Affected: < 0.6.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-47218 (GCVE-0-2026-47218)

    Vulnerability from cvelistv5 – Published: 2026-10-15 18:16 – Updated: 2026-10-15 19:55
    VLAI
    Title
    runwasi: Forged Wasmtime precompiled OCI layer bypasses runwasi WASI sandbox
    Summary
    runwasi facilitates running Wasm and WASI workloads managed by containerd. Prior to 0.6.1, containerd-shim-wasmtime-v1 can treat Wasmtime precompiled bytes supplied directly in an OCI image layer as a trusted artifact from the precompile-cache path and deserialize them as native code. An attacker who causes a victim to run a crafted image can bypass WebAssembly validation and execute native code in the shim zygote process, gaining the filesystem, environment, credentials, networking, and Linux syscall access available to the workload container. Downstream shims built with runwasi's containerd-shim-wasm precompile-cache API are also affected if they implement Compiler and trust executable precompiled artifacts from OCI image layers; the 0.6.1 boundary applies specifically to containerd-shim-wasmtime and does not independently certify downstream product releases. The flaw escapes the WASI sandbox to the workload container boundary, but it does not by itself bypass container isolation or provide direct host code execution. This issue is fixed in version 0.6.1.
    Severity
    9.3 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-10-15 19:55 UTC
    CWE
    • CWE-502 - Deserialization of Untrusted Data
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7760 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    containerd runwasi Affected: < 0.6.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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