CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2025-48956
High (7.5) in vllm vllm. EPSS 0.6% chance of exploitation in the next 30 days. Fixed in vllm 0.10.1.1.
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.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)
- CWE
- CWE-400
- Published
- Modified
- Record from
- the NVD, synced
Affected
- vllm:vllm
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-rxc4-3w6r-4v47 | PyPI | vllm | >=0.1.0 <0.10.1.1 | 0.10.1.1 |
| PYSEC-2026-2021 | PyPI | vllm | >=0.1.0 <0.10.1.1 | 0.10.1.1 |