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.
Metrics
Affected Vendors & Products
References
History
Mon, 15 Jun 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Vllm
Vllm vllm |
|
| CPEs | cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Vllm
Vllm vllm |
Fri, 12 Jun 2026 20:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Vllm-project
Vllm-project vllm |
|
| Vendors & Products |
Vllm-project
Vllm-project vllm |
Thu, 11 Jun 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 11 Jun 2026 10:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Unbounded Frame Count in video/jpeg Base64 Data URL Processing Leads to OOM DoS in vllm-project/vllm | |
| Weaknesses | CWE-400 | |
| References |
| |
| Metrics |
cvssV3_0
|
Status: PUBLISHED
Assigner: @huntr_ai
Published: 2026-06-11T08:31:18.953Z
Updated: 2026-06-11T14:01:07.379Z
Reserved: 2026-04-03T14:41:01.113Z
Link: CVE-2026-5497
Updated: 2026-06-11T14:00:30.608Z
Status : Analyzed
Published: 2026-06-11T10:16:21.903
Modified: 2026-06-15T16:11:21.060
Link: CVE-2026-5497
No data.