A security flaw has been discovered in vllm-project vLLM up to 0.31.0. This impacts the function get_token_bin_counts_and_mask of the file vllm/model_executor/layers/utils.py of the component Penalty Handler. Performing a manipulation results in denial of service.
Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Vllm Vllm
cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*
|
— |
<= 0.31.0
|
References 7
https://gist.github.com/Yunzez/5c70a3bb328eaf6d646b9d31e879dc4a#file-repro_prom…
cna@vuldb.com
https://github.com/vllm-project/vllm/
cna@vuldb.com
https://github.com/vllm-project/vllm/issues/57719
cna@vuldb.com
https://vuldb.com/cve/CVE-2026-105922
cna@vuldb.com
https://vuldb.com/submit/992707
cna@vuldb.com
https://vuldb.com/vuln/413896
cna@vuldb.com
https://vuldb.com/vuln/413896/cti
cna@vuldb.com