CVE-2026-5497
7.5 HIGHvLLM versions 0.8.0 and later are vulnerable to an Out-of-Memory (OOM) Denial of Service (DoS) attack due to unbounded frame count proces...
Published: 2026-06-11 · Last updated: 2026-06-15
Severity and scoring
- CVSS
- 7.5 HIGH
- Vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CWE
- CWE-400
Affected products
| Vendor | Product |
|---|---|
| vllm | vllm |
Description
vLLM versions 0.8.0 and later are vulnerable to an Out-of-Memory (OOM) Denial of Service (DoS) attack due to unbounded frame count processing in the `VideoMediaIO.load_base64()` method. When processing `video/jpeg` data URLs, the method splits the base64 data string on commas to extract individual JPEG frames without enforcing a frame count limit. An attacker can exploit this by crafting a single API request containing thousands of comma-separated base64-encoded JPEG frames in a data URL, causing the server to decode all frames into memory and crash due to excessive memory consumption. This vulnerability is reachable via the OpenAI-compatible chat completions API and does not require authentication.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-5497
- [Patch]https://github.com/vllm-project/vllm/commit/58ee61422169ce17e08248f8efa1e9df434fe395
- [Exploit reference]https://huntr.com/bounties/7bd92629-b396-4449-8f88-6c0092530eb4
- [Exploit reference]https://huntr.com/bounties/7bd92629-b396-4449-8f88-6c0092530eb4
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Same CWE
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- CVE-2026-12319 — Denial-of-service in the Audio/Video: Playback component (6.5 MEDIUM)
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