CVE-2026-116181
HIGH 7.1vLLM from 0.20.1 before 0.29.0 contains an improper input validation vulnerability that allows remote attackers to crash the engine by supplying out-of-vocabulary stop_token_ids. Attackers can send OpenAI chat, completion, generate, or batch requests with invalid IDs to terminate the engine or write outside the V2 runner's logits buffer.
Severe if exploited (CVSS 7.1), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
0.4%chance of exploitation in 30 days · 30th percentile
Impact if exploited
7.1CVSS 4.0 · HIGH
- ConfidentialityNone
- IntegrityNone
- AvailabilityHigh
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ⚠Privileges: Requires a low-privilege account
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
- ✓Requirements: No special attack requirements
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
Search for new PoCs
Search GitHub now — results may be empty or unverified.
Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.
Data snapshot:
Weakness (CWE)
- CWE-129: Improper Validation of Array Index
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
References and research data (JSON)
Vendor product assessments
rhaii-fast/vllm-cpu-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-cpu-rhel9@sha256:2e80ddd99b494b543e3b8dbb9ebff9534d8b72370858ac4eb65283563a6e196a?repository_url=registry.redhat.io/rhaii-fast/vllm-cpu-rhel9
- none available: Fix deferred
rhaii-fast/vllm-cuda-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-cuda-rhel9@sha256:032d0e6ec60fd9356e4baacd299ce392eefa904e2a65a092c0f3691b3bd68429?repository_url=registry.redhat.io/rhaii-fast/vllm-cuda-rhel9
- none available: Fix deferred
rhaii-fast/vllm-gaudi-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-gaudi-rhel9@sha256:2763de8c9440c91acdcb3640f8378b6a35395592f835c8499cc0e70ee68d0397?repository_url=registry.redhat.io/rhaii-fast/vllm-gaudi-rhel9
- none available: Fix deferred
rhaii-fast/vllm-neuron-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-neuron-rhel9@sha256:2123ce6126c0b9399eb4f50016cef29faf48db8508b33d7d4418a99f0dbe8f8f?repository_url=registry.redhat.io/rhaii-fast/vllm-neuron-rhel9
- none available: Fix deferred
rhaii-fast/vllm-omni-cuda-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-omni-cuda-rhel9@sha256:b3da826af410b69c2c6126f85c8ad01d46a87e2443df3a8325a0a95ddf82eb8d?repository_url=registry.redhat.io/rhaii-fast/vllm-omni-cuda-rhel9
- none available: Fix deferred
rhaii-fast/vllm-rocm-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-rocm-rhel9@sha256:629cb91485a91d6043867b9cbae7b5c16a73fb8570f3ebd5e611fc74962c3deb?repository_url=registry.redhat.io/rhaii-fast/vllm-rocm-rhel9
- none available: Fix deferred
rhaii-fast/vllm-spyre-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-spyre-rhel9@sha256:888cf46ee153054d83b4dd362ebc2ad45562824e83f2cd4a3ebac2a19d207828?repository_url=registry.redhat.io/rhaii-fast/vllm-spyre-rhel9
- none available: Fix deferred
rhaii-fast/vllm-tpu-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-tpu-rhel9@sha256:beae84a9d32cf6de10ce5e25ae91fd5058b49c82f30a394ce6ee8c896df72e81?repository_url=registry.redhat.io/rhaii-fast/vllm-tpu-rhel9
- none available: Fix deferred
rhaii/vllm-cpu-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-cpu-rhel9@sha256:bcd8563d0888d97cb346557d77f823ba8480daa84695e2bfb9e2e1827117fb39?repository_url=registry.redhat.io/rhaii/vllm-cpu-rhel9
- none available: Fix deferred
rhaii/vllm-cuda-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-cuda-rhel9@sha256:8d8180e8c11b6ab6344ad42ef80ed03e35815d2fcd835b3b4ec931c64b934461?repository_url=registry.redhat.io/rhaii/vllm-cuda-rhel9
- none available: Fix deferred
rhaii/vllm-gaudi-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-gaudi-rhel9@sha256:ba46859d4cb085c111a27bc665c15e5f826320e86c03b940f7a28f40df79ad22?repository_url=registry.redhat.io/rhaii/vllm-gaudi-rhel9
- none available: Fix deferred
rhaii/vllm-neuron-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-neuron-rhel9@sha256:b6e8f608e38ca2cd9ea682a51e9d84dc624171281bd59f600b7eb1fe9f508be2?repository_url=registry.redhat.io/rhaii/vllm-neuron-rhel9
- none available: Fix deferred
rhaii/vllm-rocm-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-rocm-rhel9@sha256:fad3819d9130fa3e9cfa7ab2f0d1b420140d93cfe2242f78dc289146ef985f4e?repository_url=registry.redhat.io/rhaii/vllm-rocm-rhel9
- none available: Fix deferred
rhaii/vllm-spyre-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-spyre-rhel9@sha256:06d05633adc879bab2f1e3e7b3b394873304f4dd520e0f2a0b84da344e9bda30?repository_url=registry.redhat.io/rhaii/vllm-spyre-rhel9
- none available: Fix deferred
rhaii/vllm-tpu-rhel9 as a component of Red Hat AI Inference Server · known affected
Vendor assessment for this product only.
pkg:oci/vllm-tpu-rhel9@sha256:3cdf404f9f3fdda5460ccd26fdcf26e83094ac2c2cdc40ed4bf32501c6e331d8?repository_url=registry.redhat.io/rhaii/vllm-tpu-rhel9
- none available: Fix deferred
rhelai3/bootc-aws-cuda-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected
Vendor assessment for this product only.
pkg:oci/bootc-aws-cuda-rhel9@sha256:06b1e9b7df858121b6f339a5e78de93307be96c191a1c3e6df50cfeffaf9df15?repository_url=registry.redhat.io/rhelai3/bootc-aws-cuda-rhel9
- none available: Fix deferred
rhelai3/bootc-azure-cuda-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected
Vendor assessment for this product only.
pkg:oci/bootc-azure-cuda-rhel9@sha256:698d9e34aaf479d0149ea75b841dacbe0117ba2e3718a7088ac98ea6b081792e?repository_url=registry.redhat.io/rhelai3/bootc-azure-cuda-rhel9
- none available: Fix deferred
rhelai3/bootc-azure-rocm-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected
Vendor assessment for this product only.
pkg:oci/bootc-azure-rocm-rhel9@sha256:87723c21f48eb371968e2d68346953f2a03a3cf643a967801b84696ee3e1f1e8?repository_url=registry.redhat.io/rhelai3/bootc-azure-rocm-rhel9
- none available: Fix deferred
rhelai3/bootc-cuda-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected
Vendor assessment for this product only.
pkg:oci/bootc-cuda-rhel9@sha256:e0fbb896811ab54d183e23612030072b946674824bad697bf2b3f68362651662?repository_url=registry.redhat.io/rhelai3/bootc-cuda-rhel9
- none available: Fix deferred
rhelai3/bootc-gaudi-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected
Vendor assessment for this product only.
pkg:oci/bootc-gaudi-rhel9@sha256:e1057b59ca1be9501332abf97230855e85c7df858356be0da9dce230ea7e98e1?repository_url=registry.redhat.io/rhelai3/bootc-gaudi-rhel9
- none available: Fix deferred
rhelai3/bootc-gcp-cuda-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected
Vendor assessment for this product only.
pkg:oci/bootc-gcp-cuda-rhel9@sha256:c1a193fa047eedbbf52be0b1d0f5d52e3e572d144a871f7c9322a34ba5abd92f?repository_url=registry.redhat.io/rhelai3/bootc-gcp-cuda-rhel9
- none available: Fix deferred
rhelai3/bootc-rocm-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected
Vendor assessment for this product only.
pkg:oci/bootc-rocm-rhel9@sha256:8fe5203e86917e5f829bd64b831cad31536d23a213b4bfe31e652577ad0faf2e?repository_url=registry.redhat.io/rhelai3/bootc-rocm-rhel9
- none available: Fix deferred
rhoai/odh-kserve-agent-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected
Vendor assessment for this product only.
pkg:oci/odh-kserve-agent-rhel9@sha256:224998a4fd210ae1cbaa34a8764590adb2c1000073d90be80c8c1e18c32228de?repository_url=registry.redhat.io/rhoai/odh-kserve-agent-rhel9
- none available: Fix deferred
rhoai/odh-kserve-controller-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected
Vendor assessment for this product only.
pkg:oci/odh-kserve-controller-rhel9@sha256:988adc9396c792943cce6335c6aff8693650a9ed0ab9c5fcf1617f26f980357b?repository_url=registry.redhat.io/rhoai/odh-kserve-controller-rhel9
- none available: Fix deferred
rhoai/odh-kserve-router-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected
Vendor assessment for this product only.
pkg:oci/odh-kserve-router-rhel9@sha256:f270659c56daef0189f06a91c36aac47283d76d9a8aaef29faa9c2f8a7c09ed2?repository_url=registry.redhat.io/rhoai/odh-kserve-router-rhel9
- none available: Fix deferred
rhoai/odh-kserve-storage-initializer-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected
Vendor assessment for this product only.
pkg:oci/odh-kserve-storage-initializer-rhel9@sha256:5ced0f4f30d995e9dc3a82b9565cd692bb446deb496c8e5bc5b26d27595682d9?repository_url=registry.redhat.io/rhoai/odh-kserve-storage-initializer-rhel9
- none available: Fix deferred
rhoai/odh-llm-d-kv-cache-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected
Vendor assessment for this product only.
pkg:oci/odh-llm-d-kv-cache-rhel9@sha256:cb5eedeefd2578cd9bd8637250bbe299c84539f57b4ead75d630ed9f833a6ef2?repository_url=registry.redhat.io/rhoai/odh-llm-d-kv-cache-rhel9
- none available: Fix deferred
rhoai/odh-th-torch-cuda-py312-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected
Vendor assessment for this product only.
pkg:oci/odh-th-torch-cuda-py312-rhel9@sha256:4d62d21bf2ad4d4ce28f9e123d9ee0585da64d59cf3c40d3d0b7d29328ddaef4?repository_url=registry.redhat.io/rhoai/odh-th-torch-cuda-py312-rhel9
- none available: Fix deferred
rhoai/odh-vllm-cuda-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected
Vendor assessment for this product only.
pkg:oci/odh-vllm-cuda-rhel9@sha256:d6e6d515afa2f16ddff7d2384859eeaf7ad240f8f5021e0d51835b98d3f2ffd2?repository_url=registry.redhat.io/rhoai/odh-vllm-cuda-rhel9
- none available: Fix deferred
rhoai/odh-vllm-gaudi-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected
Vendor assessment for this product only.
pkg:oci/odh-vllm-gaudi-rhel9@sha256:87eec3862eb6ddef445f89dcf6fd89add7ef202ea7c563b1ee7347537fb3e250?repository_url=registry.redhat.io/rhoai/odh-vllm-gaudi-rhel9
- none available: Fix deferred
rhoai/odh-vllm-rocm-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected
Vendor assessment for this product only.
pkg:oci/odh-vllm-rocm-rhel9@sha256:41b6d3cd097cf8b66e839a5a6026ed252252740470ecb1c32c87618fc82702e2?repository_url=registry.redhat.io/rhoai/odh-vllm-rocm-rhel9
- none available: Fix deferred
All CVSS metrics
- HIGH 7.1 v4.0 · CNA Primary
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - MEDIUM 6.5 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - HIGH 7.1 v4.0 · NVD Secondary
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - MEDIUM 6.5 v3.1 · NVD Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
Advisories
- https://github.com/vllm-project/vllm/security/advisories/GHSA-w9r6-29q4-pvpr CVE record · VulnCheck · Updated 2026-10-25T13:20:19.874Z
NVD · CVE-2026-116181 · Updated 2026-10-25T14:16:57.907
Red Hat · CVE-2026-116181 · Updated 2026-10-25T13:50:01+00:00 - https://www.vulncheck.com/advisories/vllm-0.20.1-before-0.29.0-dos-and-gpu-out-of-bounds-write-via-stop-token-ids CVE record · VulnCheck · Updated 2026-10-25T13:20:19.874Z
NVD · CVE-2026-116181 · Updated 2026-10-25T14:16:57.907
Red Hat · CVE-2026-116181 · Updated 2026-10-25T13:50:01+00:00 - https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-116181.json Red Hat · CVE-2026-116181 · Updated 2026-10-25T13:50:01+00:00
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-109442 EUVD · EUVD-2026-109442
Technical & other
- https://access.redhat.com/security/cve/CVE-2026-116181 Red Hat · CVE-2026-116181 · Updated 2026-10-25T13:50:01+00:00
- https://bugzilla.redhat.com/show_bug.cgi?id=2560405 Red Hat · CVE-2026-116181 · Updated 2026-10-25T13:50:01+00:00
- https://www.cve.org/CVERecord?id=CVE-2026-116181 Red Hat · CVE-2026-116181 · Updated 2026-10-25T13:50:01+00:00
- https://nvd.nist.gov/vuln/detail/CVE-2026-116181 Red Hat · CVE-2026-116181 · Updated 2026-10-25T13:50:01+00:00