CVE-2026-105922

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.

CVSS 4.0

2.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

CVSS 3.1

4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS

0.3% chance of exploitation in the next 30 days; higher than 23% of CVEs (scores of 2026-10-25)

CWE

CWE-404

Published

2026-10-06

Modified

2026-10-09

Record from

the NVD, synced 2026-10-19

Affected

• vllm:vllm

Packages (OSV)

References

• https://gist.github.com/Yunzez/5c70a3bb328eaf6d646b9d31e879dc4a#file-repro_prompt_embeds_penalties_engine_crash-py
• https://github.com/vllm-project/vllm/
• https://github.com/vllm-project/vllm/issues/57719
• https://vuldb.com/cve/CVE-2026-105922
• https://vuldb.com/submit/992707

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