CVE catalog
CVE-2026-5497
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 processin
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.54% · Oct 25, 2026
A flaw was found in vLLM. An attacker can exploit this vulnerability by sending a specially crafted API request containing an excessive number of base64-encoded JPEG frames within a data URL. This unbounded processing of frames in the `VideoMediaIO.load_base64()` method leads to an Out-of-Memory (OOM) condition, causing the server to crash and resulting in a Denial of Service (DoS). vllm: vLLM: Denial of Service via unbounded 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 |
| Pip | vllm | Not reported | 0.19.0 | fixed |
| Cpe | 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 |
| Pip | vllm | pip | Not reported | 0.19.0 | Not reported | GHSA-WCWG-C5FC-9VRC | Not reported |
| Cpe | vllm | cpe | Not reported | 0.19.0 | Not reported | NVD-CVE-2026-5497 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://access.redhat.com/security/cve/CVE-2026-5497]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2487813]
- [https://github.com/advisories/GHSA-wcwg-c5fc-9vrc]
- [https://github.com/vllm-project/vllm/commit/58ee61422169ce17e08248f8efa1e9df434fe395]
- [https://huntr.com/bounties/7bd92629-b396-4449-8f88-6c0092530eb4]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-5497]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5497.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1897.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]