Resource exhaustion in vLLM - #VU146571
Published: September 1, 2026
Vulnerability identifier: #VU146571
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-400
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled resource consumption in load_audio_pyav in nano_nemotron_vl.py when processing crafted video input for audio extraction. A remote attacker can supply a small compressed video file to trigger excessive memory allocation and cause a denial of service.
Exploitation is reachable through LLM.generate() with multi_modal_data when using NanoNemotronVL models with use_audio_in_video enabled and no separate audio file.
Affected software
vLLM
Remediation
Install security update from vendor's website.
vLLM - update to 0.28.0