High severity · published Oct 21, 2026
CVE-2026-114050
vLLM before 0.31.0 Remote Engine Crash via Forged Multimodal UUID
7.5
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VL
vllm · vllm-project
before 0.31.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-114050
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-114050
github.com
https://github.com/vllm-project/vllm/security/advisories/GHSA-p92p-rxj5-7p2x
www.vulncheck.com
https://www.vulncheck.com/advisories/vllm-before-0.31.0-remote-engine-crash-via-forged-multimodal-uuid
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