PYSEC-2026-568
Vulnerability from pysec - Published: 2026-06-29 11:50 - Updated: 2026-07-01 20:23vllm-project vllm version 0.6.0 contains a vulnerability in the distributed training API. The function vllm.distributed.GroupCoordinator.recv_object() deserializes received object bytes using pickle.loads() without sanitization, leading to a remote code execution vulnerability.
Maintainer perspective
Note that vLLM does NOT use the code as described in the report on huntr. The problem only exists if you use these internal APIs in a way that exposes them to a network as described. The vllm team was not involved in the analysis of this report and the decision to assign it a CVE.
| Name | purl | vllm | pkg:pypi/vllm |
|---|
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "vllm",
"purl": "pkg:pypi/vllm"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.8.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.0.1",
"0.1.0",
"0.1.1",
"0.1.2",
"0.1.3",
"0.1.4",
"0.1.5",
"0.1.6",
"0.1.7",
"0.2.0",
"0.2.1",
"0.2.1.post1",
"0.2.2",
"0.2.3",
"0.2.4",
"0.2.5",
"0.2.6",
"0.2.7",
"0.3.0",
"0.3.1",
"0.3.2",
"0.3.3",
"0.4.0",
"0.4.0.post1",
"0.4.1",
"0.4.2",
"0.4.3",
"0.5.0",
"0.5.0.post1",
"0.5.1",
"0.5.2",
"0.5.3",
"0.5.3.post1",
"0.5.4",
"0.5.5",
"0.6.0",
"0.6.1",
"0.6.1.post1",
"0.6.1.post2",
"0.6.2",
"0.6.3",
"0.6.3.post1",
"0.6.4",
"0.6.4.post1",
"0.6.5",
"0.6.6",
"0.6.6.post1",
"0.7.0",
"0.7.1",
"0.7.2",
"0.7.3",
"0.8.0",
"0.8.1"
]
}
],
"aliases": [
"CVE-2024-9052",
"GHSA-pgr7-mhp5-fgjp"
],
"details": "vllm-project vllm version 0.6.0 contains a vulnerability in the distributed training API. The function vllm.distributed.GroupCoordinator.recv_object() deserializes received object bytes using pickle.loads() without sanitization, leading to a remote code execution vulnerability.\n\n### Maintainer perspective\nNote that vLLM does NOT use the code as described in the report on huntr. The problem only exists if you use these internal APIs in a way that exposes them to a network as described. The vllm team was not involved in the analysis of this report and the decision to assign it a CVE.",
"id": "PYSEC-2026-568",
"modified": "2026-07-01T20:23:11.311128Z",
"published": "2026-06-29T11:50:34.951406Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-9052"
},
{
"type": "WEB",
"url": "https://github.com/github/advisory-database/pull/5444"
},
{
"type": "PACKAGE",
"url": "https://github.com/vllm-project/vllm"
},
{
"type": "WEB",
"url": "https://github.com/vllm-project/vllm/blob/32e7db25365415841ebc7c4215851743fbb1bad1/vllm/distributed/parallel_state.py#L480"
},
{
"type": "WEB",
"url": "https://github.com/vllm-project/vllm/blob/v0.8.1/vllm/distributed/parallel_state.py#L457"
},
{
"type": "WEB",
"url": "https://huntr.com/bounties/ea75728f-4efe-4a3d-9f53-33f2c908e9f8"
},
{
"type": "PACKAGE",
"url": "https://pypi.org/project/vllm"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-pgr7-mhp5-fgjp"
}
],
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "vLLM deserialization vulnerability in vllm.distributed.GroupCoordinator.recv_object"
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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