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  4. CVE 2026 115912 vllm public multimodal shm handle forgery reaches
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Back to active CVEs
High · CVSS 7.5CVE-2026-115912

vLLM: Public multimodal SHM handle forgery reaches worker-side `pickle.loads()` with insecure serialization disabledCVE-2026-115912

Answer in brief

CVE-2026-115912 records a High severity (CVSS 7.5) vulnerability in vLLM: Public multimodal SHM handle forgery reaches worker-side `pickle.loads()` with insecure serialization disabled. The current sources do not mark it as known exploited. The current feed maps vllm-project/vllm (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 26, 2026Updated Oct 26, 2026Source checked Oct 26, 2026First seen by HOL Oct 26, 2026Material review Oct 26, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps vllm-project/vllm (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
vllm-project/vllmgeneric<0.32.00.32.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for vllm-project/vllm.
  2. 2Review the reported fix. Update vllm-project/vllm to 0.32.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 26, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 26, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 26, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

vLLM is an inference and serving engine for large language models. Prior to 0.32.0, an authenticated caller can place forged shared-memory address and monotonic_id values in public multimodal features.kwargs_data. In scale-out deployments with shared-memory multimodal caching enabled, workers trust those values and pass attacker-selected bytes to pickle.loads(), allowing arbitrary Python execution even when insecure serialization is disabled. This issue is fixed in version 0.32.0.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • vLLM: DoS via unbounded chat_template Jinja2 rendering exhausts the renderer thread poolSame vllm-project/vllm package
  • vLLM: Phi-4 multimodal audio encoder materializes and retains full attention matrices: a single max-length audio OOM-crashes the vLLM engineSame vllm-project/vllm package
  • vLLM DeepSeek-OCR image processing vulnerable to denial of serviceSame vllm-project/vllm package
  • vLLM: Untrusted EPS inputs can trigger denial of service or Ghostscript RCESame vllm-project/vllm package
  • vLLM: Out-of-vocabulary prompt token id passes input validation and triggers a CUDA device-side assert (engine crash / DoS)Same vllm-project/vllm package
  • vLLM: Permissive default CORS origins allow cross-origin requests to the vLLM HTTP serverSame vllm-project/vllm package

Record context

Vulnerability class
Deserialization
EPSS
Not reported
CWE IDs
CWE-502
Source
CVE List V5
Source checked
Oct 26, 2026
References
4 linked sources
Open source record