CVE-2026-126394

EUVD-2026-125171
vLLM 0.30.0 before 0.31.0 contains a resource exhaustion vulnerability in OpenCVDynamicOpenPanguVideoBackend, which uses request-controlled num_frames without an effective ceiling. Unauthenticated attackers can send /v1/chat/completions or /tokenize requests selecting the openpangu video_backend with a huge num_frames, forcing np.linspace allocations and CPU work that OOM-kill the API server.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 38.48%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
vllmvllm
0.30.0 ≤
𝑥
< 0.31.0
CNA
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://github.com/vllm-project/vllm/security/advisories/GHSA-894j-wg8m-63h8
https://www.vulncheck.com/advisories/vllm-0.30.0-before-0.31.0-resource-exhaustion-via-openpangu-video-backend-num-frames