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TI-2025-31094 Aliases CVE-2025-48956GHSA-rxc4-3w6r-4v47

vLLM API endpoints vulnerable to Denial of Service Attacks

Priority MEDIUM 40CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 3 fixed, 4 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.

Summary

vLLM is an inference and serving engine for large language models (LLMs). From 0.1.0 to before 0.10.1.1, a Denial of Service (DoS) vulnerability can be triggered by sending a single HTTP GET request with an extremely large header to an HTTP endpoint. This results in server memory exhaustion, potentially leading to a crash or unresponsiveness. The attack does not require authentication, making it exploitable by any remote user. This vulnerability is fixed in 0.10.1.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00565 47th percentileScored 2026-11-07
Fix Partial vllm (vllm-project): 0.10.1.1vllm (PyPI): 0.10.1.1Red Hat: 12 advisoriesRed Hat: 3 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
vllm-projectvllm0.1.0 to before 0.10.1.10.10.1.1Patch availableCNA
—vllm (PyPI)0.1.0 to before 0.10.1.10.10.1.1Patch availableGHSA-rxc4-3w6r-4v47
  • vllm Vendorvllm-project Affected 0.1.0 to before 0.10.1.1 Fixed in 0.10.1.1 Patch available CNA
  • vllm (PyPI) Vendor— Affected 0.1.0 to before 0.10.1.1 Fixed in 0.10.1.1 Patch available GHSA-rxc4-3w6r-4v47

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*0.1.0 to before 0.10.1.1VulnerablevLLM
  • cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:* Versions 0.1.0 to before 0.10.1.1 Vulnerable ·vLLM

Remediation

  • Fix · CNA vllm (vllm-project) Fixed in 0.10.1.1
  • Fix · GHSA-rxc4-3w6r-4v47 vllm (PyPI) Fixed in 0.10.1.1 Advisory →

Red Hat 12 advisories

  • RHSA-2026:24977 Released 2026-06-10 · Red Hat rating Important
    RHOAI 2.25.7 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 2.25 registry.redhat.io/rhoai/odh-caikit-nlp-rhel9, registry.redhat.io/rhoai/odh-caikit-tgis-serving-rhel9, registry.redhat.io/rhoai/odh-dashboard-rhel9 +34
  • RHSA-2026:3713 Released 2026-03-04 · Red Hat rating Critical
    RHOAI 3.3 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 3.3 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-dashboard-rhel9, registry.redhat.io/rhoai/odh-data-science-pipelines-argo-argoexec-rhel9 +47
  • RHSA-2025:19430 Released 2025-11-03 · Red Hat rating Important
    Red Hat Enterprise Linux AI 1.5 (NVIDIA)
    • Red Hat Enterprise Linux AI 1.5 registry.redhat.io/rhelai1/bootc-azure-nvidia-rhel9
Show 9 more Red Hat advisories
  • RHSA-2025:19429 Released 2025-11-03 · Red Hat rating Important
    Red Hat Enterprise Linux AI 1.5 (NVIDIA)
    • Red Hat Enterprise Linux AI 1.5 registry.redhat.io/rhelai1/bootc-aws-nvidia-rhel9
  • RHSA-2025:19428 Released 2025-11-03 · Red Hat rating Important
    Red Hat Enterprise Linux AI 1.5 (NVIDIA)
    • Red Hat Enterprise Linux AI 1.5 registry.redhat.io/rhelai1/bootc-nvidia-rhel9
  • RHSA-2025:19427 Released 2025-11-03 · Red Hat rating Important
    Red Hat Enterprise Linux AI 1.5 (AMD)
    • Red Hat Enterprise Linux AI 1.5 registry.redhat.io/rhelai1/bootc-amd-rhel9
  • RHSA-2025:19426 Released 2025-11-03 · Red Hat rating Important
    Red Hat Enterprise Linux AI 1.5 (NVIDIA)
    • Red Hat Enterprise Linux AI 1.5 registry.redhat.io/rhelai1/bootc-gcp-nvidia-rhel9
  • RHSA-2025:19425 Released 2025-11-03 · Red Hat rating Important
    Red Hat Enterprise Linux AI 1.5 (AMD)
    • Red Hat Enterprise Linux AI 1.5 registry.redhat.io/rhelai1/instructlab-amd-rhel9
  • RHSA-2025:19424 Released 2025-11-03 · Red Hat rating Important
    Red Hat Enterprise Linux AI 1.5 (AMD)
    • Red Hat Enterprise Linux AI 1.5 registry.redhat.io/rhelai1/bootc-azure-amd-rhel9
  • RHSA-2025:19423 Released 2025-11-03 · Red Hat rating Important
    Red Hat Enterprise Linux AI 1.5 (NVIDIA)
    • Red Hat Enterprise Linux AI 1.5 registry.redhat.io/rhelai1/instructlab-nvidia-rhel9
  • RHSA-2025:19422 Released 2025-11-03 · Red Hat rating Important
    Red Hat Enterprise Linux AI 1.5 (Intel Gaudi)
    • Red Hat Enterprise Linux AI 1.5 registry.redhat.io/rhelai1/bootc-intel-rhel9
  • RHSA-2025:19421 Released 2025-11-03 · Red Hat rating Important
    Red Hat Enterprise Linux AI 1.5 (Intel Gaudi)
    • Red Hat Enterprise Linux AI 1.5 registry.redhat.io/rhelai1/instructlab-intel-rhel9

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat AI Inference ServerAffectedNo fix yet
Red Hat Enterprise Linux AI (RHEL AI)AffectedNo fix yet
Red Hat Enterprise Linux AI (RHEL AI) 3AffectedNo fix planned: Will not fix
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet
Red Hat Enterprise Linux AI 1.5Fixed RHSA-2025:19421, RHSA-2025:19422, RHSA-2025:19423, RHSA-2025:19424, RHSA-2025:19425, RHSA-2025:19426, RHSA-2025:19427, RHSA-2025:19428, RHSA-2025:19429, RHSA-2025:19430
Red Hat OpenShift AI 2.25Fixed RHSA-2026:24977
Red Hat OpenShift AI 3.3Fixed RHSA-2026:3713
Not affected: 2 products
  • Red Hat OpenShift AI 2.25
  • Red Hat OpenShift AI 3.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-48956
  2. 2026-10-03 Alias added: GHSA-rxc4-3w6r-4v47

References

Patch 2

Advisory 3

Other 3

  • TI-2024-10229 Remote Code Execution in vllm-project/vllm CVSS 3.0CRITICAL 9.8
  • TI-2024-08404 Remote Code Execution in vllm-project/vllm CVSS 3.1CRITICAL 9.8
  • TI-2026-36017 vLLM: OpenAI auth bypass CVSS 3.1CRITICAL 9.1
  • TI-2026-63056 vLLM before 0.28.0 Denial of Service via negative token ID CVSS 4.0HIGH 8.7
  • TI-2026-04308 Hardcoded trust_remote_code=True in vllm-project/vllm Bypasses User Security Control CVSS 3.0HIGH 8.8
  • TI-2026-39137 vLLM: Remote DoS in vLLM via Invalid Recovered Token Reinjection CVSS 3.1HIGH 7.5
See all 124 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences