CVE-2025-48956: vllm API endpoints vulnerable to Denial of Service Attacks
(updated )
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.
References
- github.com/advisories/GHSA-rxc4-3w6r-4v47
- github.com/pypa/advisory-database/tree/main/vulns/vllm/PYSEC-2026-2021.yaml
- github.com/vllm-project/vllm
- github.com/vllm-project/vllm/commit/d8b736f913a59117803d6701521d2e4861701944
- github.com/vllm-project/vllm/pull/23267
- github.com/vllm-project/vllm/security/advisories/GHSA-rxc4-3w6r-4v47
- nvd.nist.gov/vuln/detail/CVE-2025-48956
- pypi.org/project/vllm
Code Behaviors & Features
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