CVE catalog
CVE-2026-34755
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 UR
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.46% · Oct 25, 2026
A flaw was found in vLLM, an inference and serving engine for large language models. A remote attacker can exploit a vulnerability in the VideoMediaIO.load_base64() method by sending a single API request containing a large number of comma-separated base64-encoded JPEG frames. This bypasses the intended frame count limit, causing the server to decode all frames into memory. This can lead to an Out-of-Memory (OOM) crash, resulting in a Denial of Service (DoS) for the affected system. vLLM: vLLM: Denial of Service due to excessive video frame processing The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | vllm | Not reported | 0.19.0 | fixed |
| Cpe | vllm | Not reported | 0.19.0 | fixed |
| Pip | vllm | Not reported | 0.19.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | vllm | cpe | Not reported | 0.19.0 | Not reported | Not reported | Not reported |
| Cpe | vllm | cpe | Not reported | 0.19.0 | Not reported | NVD-CVE-2026-34755 | Not reported |
| Pip | vllm | pip | Not reported | 0.19.0 | Not reported | GHSA-PQ5C-RJHQ-QP7P | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://github.com/advisories/GHSA-pq5c-rjhq-qp7p]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-34755]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34755.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0987.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]