Bug 2535464 (CVE-2026-92365)

Summary: CVE-2026-92365 vllm: vllm-project vllm: Denial of Service via algorithmic complexity vulnerability
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: alinfoot, bbrownin, dtrifiro, weaton
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in vllm-project vllm. A remote attacker could exploit an algorithmic complexity vulnerability by manipulating unknown functionality within the `thinking_budget_state.py` file. This manipulation results in inefficient algorithmic complexity, which may lead to a Denial of Service (DoS), making the service unavailable to legitimate users.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-09-16 14:26:38 UTC
A vulnerability was found in vllm-project vllm up to 0.29.0. Affected by this issue is some unknown functionality of the file vllm/v1/sample/thinking_budget_state.py. The manipulation results in inefficient algorithmic complexity. It is possible to launch the attack remotely. The pull request to fix this issue awaits acceptance.