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CVE-2026-34753

CVE-2026-34753 · vLLM affected by Server-Side Request Forgery (SSRF) in `download_bytes_from_url `

This page contains facts from public vulnerability sources. Check the original advisory before updating.

vLLM is an inference and serving engine for large language models (LLMs). From 0.16.0 to before 0.19.0, a server-side request forgery (SSRF) vulnerability in download_bytes_from_url allows any actor who can control batch input JSON to make the vLLM batch runner issue arbitrary HTTP/HTTPS requests from the server, without any URL validation or domain restrictions. This can be used to target internal services (e.g. cloud metadata endpoints or internal HTTP APIs) reachable from the vLLM host. This vulnerability is fixed in 0.19.0.

CVSS 5.4 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • vllm

    Versions
    • >= 0.16.0, < 0.19.0: Affected

    No fix published

  • vllm PyPI

    Versions
    • 0.16.0
    • 0.17.0
    • 0.17.1
    • 0.18.0
    • 0.18.1
    Affected ranges
    • ECOSYSTEM: ≥ 0.16.0, < 0.19.0

    Update to 0.19.0

Original sources

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