CVE-2026-114050

HIGH 7.5

vLLM before 0.31.0 Remote Engine Crash via Forged Multimodal UUID

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

vLLM before 0.31.0 uses a client-supplied multimodal uuid verbatim as cache identity with no consistency check on cache hits, allowing engine crashes. Unauthenticated attackers can desynchronize the P0/P1 processor caches to trigger a fatal token-placeholder mismatch, killing the entire serving instance until restarted.

CWE	CWE-345
Vendor	vllm-project
Product	vllm
Published	Oct 21, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

vllm-project / vllm

0 < 0.31.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/vllm-project/vllm/security/advisories/GHSA-p92p-rxj5-7p2x vulncheck.com: https://www.vulncheck.com/advisories/vllm-before-0.31.0-remote-engine-crash-via-forged-multimodal-uuid

Credits

🔍 C1ves 🔍 JSGforever jperezdealgaba