CVE-2026-5497

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Source
https://cve.org/CVERecord?id=CVE-2026-5497
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5497.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-5497
Aliases
Downstream
CGA (2)
Published
2026-06-11T08:31:18Z
Modified
2026-10-28T02:31:02Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Unbounded Frame Count in video/jpeg Base64 Data URL Processing Leads to OOM DoS in vllm-project/vllm
Details

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.

Database specific 
{
    "cna_assigner": "@huntr_ai",
    "cwe_ids": [
        "CWE-400"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5497.json"
}
References

Affected packages

Git / github.com/vllm-project/vllm

Affected ranges

Type
GIT
Repo
https://github.com/vllm-project/vllm
Events
Introduced
966f933ee1cd7c9a41db60de5c7ff98657005251
Fixed
2a69949bdadf0e8942b7a1619b229cb475beef20
Fixed
58ee61422169ce17e08248f8efa1e9df434fe395
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "0.8.0"
                },
                {
                    "fixed": "0.19.0"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "range": [
                {
                    "fixed": "58ee61422169ce17e08248f8efa1e9df434fe395"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5497.json"