CVE-2026-112270 (GCVE-0-2026-112270)

Vulnerability from cvelistv5 – Published: 2026-10-19 13:55 – Updated: 2026-10-19 16:34
VLAI
Title
SGLang through 0.5.22 Memory Exhaustion via Mooncake STAGING_RSP chunk_idx
Summary
SGLang through 0.5.22 with the Mooncake disaggregation backend contains an uncontrolled memory allocation vulnerability in handle_staging_rsp() that lets unauthenticated network-adjacent attackers exhaust Prefill memory. Attackers can obtain the rank address from the /route endpoint and send STAGING_RSP messages with huge chunk_idx values under fresh room IDs, causing the scheduler to be OOM-killed.
Severity
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-19 15:35 UTC
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6476 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
sgl-project sglang Affected: 0 , ≤ 0.5.22 (semver)
guessed Create a notification for this product.
Date Public
2026-10-18 15:41
Credits
Mingkai Yu Jiadai Wang Jiajia Liu
Show details on NVD website
To clipboard 

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