Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| vllm-project | vLLM | 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.10, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 0.19, 0.20, 0.21, 0.22, 0.23, 0.24, 0.25, 0.26, 0.27, 0.28, 0.29, 0.30, 0.31.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python-vllm | 0.30.0-2.1 | openSUSE-SU-2026:12120-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | vllm | < 0.32.0 | 0.32.0 | PYSEC-2026-4319 |
Advisories 1
- openSUSE-SU-2026:12120-1 python313-vllm-0.30.0-2.1 on GA media SUSE / openSUSE Security Updates · Oct 14, 2026
References
- VDB-413896 | vllm-project vLLM Penalty utils.py get_token_bin_counts_and_mask denial of service vdb-entry technical-description
- VDB-413896 | CTI Indicators (IOB, IOC, TTP, IOA) signature permissions-required
- CVE-2026-105922 | CVE Analysis and Report third-party-advisory
- Submit #992707 | vLLM Project vLLM 0.27.1 Denial of Service third-party-advisory
- https://github.com/vllm-project/vllm/issues/57719 issue-tracking
- https://gist.github.com/Yunzez/5c70a3bb328eaf6d646b9d31e879dc4a#file-repro_prompt_embeds_penalties_engine_crash-py exploit
- https://github.com/vllm-project/vllm/ product