CVE-2026-94627

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Source

https://cve.org/CVERecord?id=CVE-2026-94627

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-94627.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-94627

Published

2026-09-21T22:04:16Z

Modified

2026-09-22T11:46:04Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

vLLM through 0.29.0 GPU KV Cache Leak via Mooncake Transfer ID Collision

Details

vLLM Mooncake connector through 0.29.0 fails to properly manage GPU KV cache block ownership when concurrent child requests share a single transfer ID in prefill/decode disaggregated deployments. Attackers can trigger GPU memory exhaustion by submitting completion requests with multiple prompts, causing orphaned KV cache blocks to accumulate until process restart and eventually preventing legitimate requests from executing.

Database specific

{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-401"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/94xxx/CVE-2026-94627.json"
}

References

Affected packages

Git / github.com/vllm-project/vllm

Affected ranges

Type

GIT

Repo

https://github.com/vllm-project/vllm

Events

Introduced

Last Affected

98dff2a81d747d1dba01a47f939f48c3526d4206

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "0.29.0"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

Other

submission

v0.*

v0.1.0

v0.1.1

v0.1.2

v0.1.3

v0.1.4

v0.1.5

v0.1.6

v0.1.7

v0.10.0

v0.10.0rc1

v0.10.0rc2

v0.10.1rc1

v0.10.2rc1

v0.10.2rc2

v0.11.0rc1

v0.11.1

v0.11.1rc0

v0.11.1rc1

v0.11.1rc2

v0.11.1rc3

v0.11.1rc4

v0.11.1rc5

v0.11.1rc6

v0.13.0rc1

v0.14.0rc0

v0.14.0rc1

v0.15.0rc1

v0.15.2rc0

v0.16.0rc0

v0.16.0rc1

v0.17.0rc0

v0.17.1rc0

v0.17.2rc0

v0.18.0rc0

v0.18.1rc0

v0.18.2rc0

v0.19.1rc0

v0.19.2rc0

v0.2.0

v0.2.1

v0.2.2

v0.2.3

v0.2.4

v0.2.5

v0.2.6

v0.2.7

v0.20.1rc0

v0.20.2rc0

v0.21.1rc0

v0.22.1rc0

v0.23.1rc0

v0.25.0

v0.26.1rc0

v0.27.2rc0

v0.28.1rc0

v0.29.0

v0.29.0rc1

v0.29.0rc2

v0.29.0rc3

v0.29.0rc4

v0.29.0rc5

v0.29.0rc6

v0.3.0

v0.3.1

v0.3.2

v0.3.3

v0.4.0

v0.4.0.post1

v0.4.1

v0.4.2

v0.4.3

v0.5.0

v0.5.0.post1

v0.5.1

v0.5.2

v0.5.3

v0.5.3.post1

v0.5.4

v0.5.5

v0.6.0

v0.6.1

v0.6.1.post1

v0.6.1.post2

v0.6.2

v0.6.3

v0.6.3.post1

v0.6.4

v0.6.4.post1

v0.6.5

v0.6.6

v0.6.6.post1

v0.7.0

v0.7.1

v0.7.2

v0.7.3

v0.8.0rc1

v0.8.0rc2

v0.8.1

v0.8.2

v0.8.3rc1

v0.8.4

v0.9.0

v0.9.1

v0.9.1rc1

v0.9.1rc2

v0.9.2rc1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-94627.json"