CVE-2026-34755
MEDIUM6.5EPSS 0.05%vLLM: Denial of Service via Unbounded Frame Count in video/jpeg Base64 Processing
發布日:2026/4/3修改日:2026/5/20
描述
vLLM is an inference and serving engine for large language models (LLMs). From 0.7.0 to before 0.19.0, the VideoMediaIO.load_base64() method at vllm/multimodal/media/video.py splits video/jpeg data URLs by comma to extract individual JPEG frames, but does not enforce a frame count limit. The num_frames parameter (default: 32), which is enforced by the load_bytes() code path, is completely bypassed in the video/jpeg base64 path. An attacker can send a single API request containing thousands of comma-separated base64-encoded JPEG frames, causing the server to decode all frames into memory and crash with OOM. This vulnerability is fixed in 0.19.0.
受影響套件(2)
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
參考連結(5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-34755
- PATCHhttps://github.com/vllm-project/vllm
- WEBhttps://github.com/vllm-project/vllm/commit/58ee61422169ce17e08248f8efa1e9df434fe395
- WEBhttps://github.com/vllm-project/vllm/pull/38636
- WEBhttps://github.com/vllm-project/vllm/security/advisories/GHSA-pq5c-rjhq-qp7p