CVE-2025-48956: vllm-project vllm Uncontrolled Resource Consumption
Vulnerability summary
CVE-2025-48956 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in vllm-project vllm. EPSS estimates a 0.56% chance of exploitation in the next 30 days, higher than 45.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 0 · Related 3Timeline
- 21-08-2025PublishedVulnerability first disclosed.
- 21-08-2025Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · PypiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.56%
Chance of exploitation in the next 30 days
Percentile
46%
Versus all other CVEs
30-day change
0.00 pp
From 0.56% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard2 products
- tritonserver-backend-vllm-cuda-12.9< 25.7.1_git20250821-r1
- tritonserver-backend-vllm-meta-cuda-12.9< 25.7.1_git20250821-r1
PyPI1 product
- vllm≥ 0.1.0, < 0.10.1.1
Vllm1 product
- vllm≥ 0.1.0, < 0.10.1.1
Vllm-project1 product
- vllm≥ 0.1.0, < 0.10.1.1
4 vendors · 5 products
References
9 links- github.com/vllm-project/vllm/security/advisories/GHSA-rxc4-3w6r-4v47X Refsource CONFIRMWEBAdvisoryVendor Advisory
- github.com/vllm-project/vllm/commit/d8b736f913a59117803d6701521d2e4861701944X Refsource MISCWEBFIXPatch
- github.com/vllm-project/vllmPACKAGE