SOURCE-LINKED INTELLIGENCE

GHSA-rxc4-3w6r-4v47: vllm API endpoints vulnerable to Denial of Service Attacks

OSV AI package advisories · observation · Aug 21, 2025 · UTC

### Summary 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. ### Details The vulnerability leverages the abuse of HTTP headers. By setting a header such as `X-Forwarded-For` to a very large value like `("A" * 5_800_000_000)`, the server's HTTP parser or application logic may attempt to load the entire request into memory,

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recordType

vulnerability

status

active

evidenceStatus

reported

region

Global