vLLM: Artifact Pin Decay in vLLM allows pinned deployments to load unpinned code, weights, and processors_CVE-2026-47155

{
    "lastseen": "",
    "description": "vLLM is an inference and serving engine for large language models (LLMs). Prior to 0.22.0, vLLM's revision pinning controls do not consistently apply to all artifacts loaded for a model. A deployment that supplies --revision or --code-revision can still load dynamic code, GGUF files, image processors, retrieval side weights, or same-repository subfolder weights/config from an unpinned/default revision. This is a supply-chain integrity issue for pinned vLLM deployments. Operators can believe they are serving a reviewed model revision while vLLM resolves behavior-affecting nested or sibling artifacts outside that reviewed revision. This vulnerability is fixed in 0.22.0.",
    "published": "2026-06-22T22:20:10.793Z",
    "modified": "2026-06-22T22:20:10.793Z",
    "type": "cve",
    "title": "vLLM: Artifact Pin Decay in vLLM allows pinned deployments to load unpinned code, weights, and processors",
    "source": "GitHub_M",
    "references": "https://github.com/vllm-project/vllm/security/advisories/GHSA-3ww4-5jv9-j5gm\nhttps://github.com/vllm-project/vllm/pull/42616\nhttps://github.com/vllm-project/vllm/commit/d26a28ab033697f55a1414b5b0435de7cd6045b6\nhttps://huntr.com/bounties/3f1e24c0-87d2-4f6c-a705-820f380879ac",
    "id": "CVE-2026-47155",
    "bulletinFamily": "",
    "cwe": [
        "CWE-345"
    ],
    "cvelist": null,
    "sourceData": "vllm-project vllm < 0.22.0",
    "sourceHref": "",
    "cvss": {
        "score": 6.5,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "vllm",
    "version": "< 0.22.0",
    "vendor": "vllm-project",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}