{"id":"CVE-2026-94624","title":"vLLM through 0.29.0 contains a denial of service vulnerability in P2P KV offloading when OffloadingConnector is configured with TieringOffloadingSpec and a peer-to-peer secondary tier","summary":"vLLM through 0.29.0 contains a denial of service vulnerability in P2P KV offloading when OffloadingConnector is configured with TieringOffloadingSpec and a peer-to-peer secondary tier. Attackers can supply arbitrary remote host and port …","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-770","CWE-772"],"vendor":"vllm","product":"vllm","affected":["vllm <= 0.29.0"],"published":"2026-09-21","updated":"2026-09-29","sourceUpdated":"2026-09-29T12:47:10.597","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-94624","references":[{"url":"https://github.com/vllm-project/vllm","label":"disclosure@vulncheck.com"},{"url":"https://github.com/vllm-project/vllm/blob/v0.29.0/vllm/v1/kv_offload/tiering/p2p/control/zmq.py#L240-L260","label":"disclosure@vulncheck.com"},{"url":"https://github.com/vllm-project/vllm/blob/v0.29.0/vllm/v1/kv_offload/tiering/p2p/manager.py#L667-L677","label":"disclosure@vulncheck.com"},{"url":"https://github.com/vllm-project/vllm/pull/51504","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/vllm-through-0.29.0-denial-of-service-via-unbounded-p2p-kv-offloading-sessions","label":"disclosure@vulncheck.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-94624.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-94624"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2539021"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-94624"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-94624"},{"url":"https://access.redhat.com/errata/RHSA-2026:84734"},{"url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-frvg-qw88-hww9"},{"url":"https://github.com/vllm-project/vllm/commit/93d2cab35e8ae66bbaa1dea1c077986d5a79eb80"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/vllm/PYSEC-2026-4006.yaml"},{"url":"https://github.com/vllm-project/vllm/releases/tag/v0.32.0"},{"url":"https://github.com/advisories/GHSA-frvg-qw88-hww9"}],"tags":["nvd","cve.org","csaf","vex","red-hat","osv","pip","ghsa"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-22T13:26:32.508111Z"},"ingestedAt":"2026-09-21T22:54:37.973Z","epss":0.00627,"epssPercentile":0.49841,"aliases":["PYSEC-2026-4006","GHSA-frvg-qw88-hww9"],"ecosystem":"pip","patched":["vllm 0.30.0"],"scores":{"nvd":7.5,"ghsa":6.5,"osv":6.5},"slug":"CVE-2026-94624","body":"## Overview\n\nvLLM through 0.29.0 contains a denial of service vulnerability in P2P KV offloading when OffloadingConnector is configured with TieringOffloadingSpec and a peer-to-peer secondary tier. Attackers can supply arbitrary remote host and port values in kv_transfer_params to create unreachable peer sessions that retain ZeroMQ sockets until the context quota is exhausted, causing an uncaught ZMQError that crashes EngineCore and stops all inference.\n\n## Affected\n\n- `vllm <= 0.29.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Red Hat AI Inference Server, Red Hat Enterprise Linux AI (RHEL AI) 3, Red Hat OpenShift AI (RHOAI) · no fix planned: Red Hat AI Inference Server, Red Hat Enterprise Linux AI (RHEL AI) 3, Red Hat OpenShift AI (RHOAI) · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-94624.json)\n- **RHSA-2026:84734** · Red Hat · fixed in: Red Hat OpenShift AI 3.4 · released 2026-10-19 · [advisory](https://access.redhat.com/errata/RHSA-2026:84734)\n\n## Package advisory (CVE-2026-94624)\n\nAffected packages:\n\n- `vllm < 0.30.0`\n\nPatched in:\n\n- `vllm 0.30.0`\n\nSource: https://osv.dev/vulnerability/PYSEC-2026-4006","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}