CVE-2026-94622
⚠️ highSummary
vLLM versions through 0.29.0 contain a denial of service vulnerability in the NIXL connector's metadata handling for prefill/decode disaggregated deployments. Attackers can send requests with incomplete kv_transfer_params dictionary entries to trigger an uncaught KeyError in EngineCore scheduling, causing the decode engine to terminate and making all routed requests fail until manual restart.
CVSS Score
7.5
High
EPSS Score
0.5
Exploit Probability
Published Date
2026-09-21
First Seen: 2026-09-24
📊 Relative Risk Intelligence
This CVE is Moderate Risk - more severe than 67.7% of all 361,609 vulnerabilities in our database.
#116,654
Above average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Sep 22, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
YES
Can be exploited automatically
💥 Technical Impact
Partial
Limited system impact
🏆 Discovered By
Mingkai Yu
Jiapeng Li
Jiajia Liu
SSVC data provided by
CISA
Last Modified
2026-09-22
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Vector 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE IDs (Weakness Types)