Bug 2537883 (CVE-2026-94623)
| Summary: | CVE-2026-94623 vllm: vLLM: Denial of Service via NIXL multi-prompt assertion failure | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | alinfoot, bbrownin, dtrifiro, weaton |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in vLLM. This denial of service vulnerability exists within the NIXL connector's prefix caching implementation. A remote attacker can exploit this by sending completion requests with multiple prompts of different lengths. This improper validation of block counts causes an assertion failure, leading to the termination and unavailability of the decode worker until it is restarted.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
OSIDB Bzimport
2026-09-22 15:52:44 UTC
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