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TI-2025-36977 Aliases CVE-2025-59425GHSA-wr9h-g72x-mwhm

vLLM vulnerable to timing attack at bearer auth

Priority MEDIUM 40CWE-385Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · None
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.

Summary

vLLM is an inference and serving engine for large language models (LLMs). Before version 0.11.0rc2, the API key support in vLLM performs validation using a method that was vulnerable to a timing attack. API key validation uses a string comparison that takes longer the more characters the provided API key gets correct. Data analysis across many attempts could allow an attacker to determine when it finds the next correct character in the key sequence. Deployments relying on vLLM's built-in API key validation are vulnerable to authentication bypass using this technique. Version 0.11.0rc2 fixes the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00566 47th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial vllm (vllm-project): 0.11.0rc2vllm (PyPI): 0.11.0Red Hat: 7 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-projectvllmbefore 0.11.0rc20.11.0rc2Patch availableCNA
—vllm (PyPI)before 0.11.00.11.0Patch availableGHSA-wr9h-g72x-mwhm
  • vllm Vendorvllm-project Affected before 0.11.0rc2 Fixed in 0.11.0rc2 Patch available CNA
  • vllm (PyPI) Vendor— Affected before 0.11.0 Fixed in 0.11.0 Patch available GHSA-wr9h-g72x-mwhm

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*before 0.11.0VulnerablevLLM
cpe:2.3:a:vllm:vllm:0.11.0:rc1:*:*:*:*:*:*0.11.0 rc1VulnerablevLLM
  • cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:* Versions before 0.11.0 Vulnerable ·vLLM
  • cpe:2.3:a:vllm:vllm:0.11.0:rc1:*:*:*:*:*:* Versions 0.11.0 rc1 Vulnerable ·vLLM

Remediation

  • Fix · CNA vllm (vllm-project) Fixed in 0.11.0rc2
  • Fix · GHSA-wr9h-g72x-mwhm vllm (PyPI) Fixed in 0.11.0 Advisory →

Red Hat 7 advisories

  • RHSA-2026:3782 Released 2026-03-04 · Red Hat rating Critical
    RHOAI 2.25.3 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 2.25 registry.redhat.io/rhoai/odh-caikit-tgis-serving-rhel9, registry.redhat.io/rhoai/odh-codeflare-operator-rhel9, registry.redhat.io/rhoai/odh-dashboard-rhel9 +27
  • 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-2026:3462 Released 2026-02-27 · Red Hat rating Critical
    Red Hat AI Inference Server 3.2.2 (ROCm)
    • Red Hat AI Inference Server 3.2 registry.redhat.io/rhaiis/vllm-rocm-rhel9
Show 4 more Red Hat advisories
  • RHSA-2026:3461 Released 2026-02-27 · Red Hat rating Critical
    Red Hat AI Inference Server 3.2.2 (CUDA)
    • Red Hat AI Inference Server 3.2 registry.redhat.io/rhaiis/vllm-cuda-rhel9
  • RHSA-2025:23080 Released 2025-12-10 · Red Hat rating Important
    Red Hat AI Inference Server Model Optimization Tools 3.2.2 (CUDA)
    • Red Hat AI Inference Server 3.2 registry.redhat.io/rhaiis/model-opt-cuda-rhel9
  • RHSA-2025:23079 Released 2025-12-10 · Red Hat rating Important
    Red Hat AI Inference Server 3.2.2 (ROCm)
    • Red Hat AI Inference Server 3.2 registry.redhat.io/rhaiis/vllm-rocm-rhel9
  • RHSA-2025:23078 Released 2025-12-10 · Red Hat rating Important
    Red Hat AI Inference Server 3.2.2 (CUDA)
    • Red Hat AI Inference Server 3.2 registry.redhat.io/rhaiis/vllm-cuda-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 planned: Will not fix
Red Hat Enterprise Linux AI (RHEL AI)AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux AI (RHEL AI) 3AffectedNo fix planned: Will not fix
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet
Red Hat AI Inference Server 3.2Fixed RHSA-2025:23078, RHSA-2025:23079, RHSA-2025:23080, RHSA-2026:3461, RHSA-2026:3462
Red Hat OpenShift AI 2.25Fixed RHSA-2026:3782
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-2025-59425
  2. 2026-10-03 Alias added: GHSA-wr9h-g72x-mwhm

References

Exploit 1

Patch 1

Advisory 2

Other 5

  • 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