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TI-2026-80522 Aliases CVE-2026-115917GHSA-vvpg-rrww-wpmh

Permissive default CORS origins in vLLM expose its HTTP server

Priority LOW 21CWE-942Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
Partial Red Hat: 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat.

Summary

vLLM before 0.32.0 sets a wildcard default CORS origin on its OpenAI-compatible server (CWE-942). A malicious web page can use a victim's browser to call an unauthenticated server on localhost or an internal network, read the responses and consume GPU resources. Credentials are disabled by default, so cookie-based attacks do not apply.

Written with Claude Haiku 5.5 from the sources below · 2026-10-31

Description from the CNA

vLLM is an inference and serving engine for large language models. Prior to 0.32.0, the OpenAI-compatible server configures Starlette CORSMiddleware with allowed_origins set to a wildcard by default. A malicious web page can use a victim's browser to reach an unauthenticated vLLM server on localhost, an internal network, or a VPN, call endpoints including GET /v1/models and POST /v1/chat/completions, consume GPU resources, and read responses. Cookie-based cross-site request forgery does not apply because credentials are disabled by default, and deployments requiring bearer authentication are exposed only when the caller already has a usable token. This issue is fixed in version 0.32.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0024 15th percentileScored 2026-11-07
Fix Partial vllm (vllm-project): 0.32.0vllm (PyPI): 0.32.0Red Hat: 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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 0.32.00.32.0Patch availableCNA
—vllm (PyPI)before 0.32.00.32.0Patch availableGHSA-vvpg-rrww-wpmh
  • vllm Vendorvllm-project Affected before 0.32.0 Fixed in 0.32.0 Patch available CNA
  • vllm (PyPI) Vendor— Affected before 0.32.0 Fixed in 0.32.0 Patch available GHSA-vvpg-rrww-wpmh

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*before 0.32.0VulnerablevLLM
  • cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:* Versions before 0.32.0 Vulnerable ·vLLM

Remediation

Upgrade the PyPI package vllm to version 0.32.0 or later. Red Hat lists no available plan for Red Hat AI Inference Server, Red Hat Enterprise Linux AI (RHEL AI) 3 and Red Hat OpenShift AI (RHOAI).

Written with Claude Haiku 5.5 from the sources below · 2026-10-31

  • Fix · CNA vllm (vllm-project) Fixed in 0.32.0
  • Fix · GHSA-vvpg-rrww-wpmh vllm (PyPI) Fixed in 0.32.0 Advisory →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat AI Inference ServerAffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3AffectedNo fix yet: Fix deferred
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-26 Threatist record created from CVE-2026-115917
  2. 2026-10-27 Affected versions changed · Red Hat
  3. 2026-10-27 CVSS score added · Red Hat
  4. 2026-10-28 CVSS score added · NVD
  5. 2026-10-28 Alias added: GHSA-vvpg-rrww-wpmh
  6. 2026-10-28 Fix available: PyPI/[email protected] · GHSA-vvpg-rrww-wpmh
  7. 2026-10-28 CVSS score added · GHSA-vvpg-rrww-wpmh
  8. 2026-10-28 Weakness changed · GHSA-vvpg-rrww-wpmh
  9. 2026-10-28 6 new references · GHSA-vvpg-rrww-wpmh
  10. 2026-10-31 CISA SSVC decision points changed

References

Patch 3

Advisory 1

Other 2

  • 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