VYPR
High severityNVD Advisory· Published Aug 21, 2025· Updated Aug 21, 2025

vLLM API endpoints vulnerable to Denial of Service Attacks

CVE-2025-48956

Description

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
vllmPyPI
>= 0.1.0, < 0.10.1.10.10.1.1

Affected products

5

Patches

Vulnerability mechanics

References

5

News mentions

0

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