CVE-2026-105922: medium-severity vulnerability in vllm-project vLLM
vllm-project vLLM Penalty utils.py get_token_bin_counts_and_mask denial of service
Published
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.3epss 0.3%
exploitation probability
0.3%top 79% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
vllm-project · vLLMpublic PoCs found — 1
cve_referencegist.github.com/Yunzez/5c70a3bb328eaf6d646b9d31e879dc4a#file-repro_prompt_embeds_penalties_engine_crash-pyunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — vllm-project vLLM
In the same product, most dangerous first.
CVE-2026-103241MEDIUMvllm-project vLLM Gemma4UnifiedParser gemma4.rs denial of serviceEPSS 0.7%CVE-2026-92220MEDIUMvllm-project vLLM MoRIIO Acknowledgement moriio_connector.py MoRIIOWrapper._handle_release_message resource consumptionEPSS 0.7%CVE-2026-90878MEDIUMvllm-project vLLM Jinja Template Rendering completions resource consumptionEPSS 0.5%CVE-2026-90555HIGHvLLM before 0.28.0 Denial of Service via Audio HeaderEPSS 0.5%CVE-2026-90553HIGHvLLM before 0.28.0 Remote Code Execution via LlavaOnevision2 processorEPSS 0.3%CVE-2026-105775MEDIUMvllm-project vLLM Completions Request mamba_mixer2.py conv_ssm_forward out-of-boundsEPSS 0.3%
References
https://gist.github.com/Yunzez/5c70a3bb328eaf6d646b9d31e879dc4a#file-repro_prompt_embeds_penalties_engine_crash-pyhttps://github.com/vllm-project/vllm/https://github.com/vllm-project/vllm/issues/57719https://vuldb.com/cve/CVE-2026-105922https://vuldb.com/submit/992707https://vuldb.com/vuln/413896https://vuldb.com/vuln/413896/cti