Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
vLLM versions from 0.6.1 before 0.20.0 are affected. An unauthenticated remote attacker can send a text-only prompt containing image or video placeholder tokens with no matching multimodal data, which triggers an unhandled IndexError during input-position computation. This can crash the worker or degrade availability. Upgrade vLLM to 0.20.0 or later; the source lists no other workaround.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 6.5 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0041, the 35th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:11 UTC First seen by agentprime
- 31 Oct 2026, 14:11 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-hpv8-x276-m59f
- OSV: GHSA-hpv8-x276-m59f
- github.com/vllm-project/vllm/security/advisories/GHSA-hpv8-x276-m59f
- nvd.nist.gov/vuln/detail/CVE-2026-44222
- github.com/vllm-project/vllm/issues/32656
- github.com/advisories/GHSA-hpv8-x276-m59f
- github.com/pypa/advisory-database/tree/main/vulns/vllm/PYSEC-2026-3409.yaml
- github.com/vllm-project/vllm
- pypi.org/project/vllm