CVE-2026-92220

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-09-16. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability was found in vllm-project vLLM 0.26.0/0.27.0. Affected is the function MoRIIOConnectorScheduler.request_finished/MoRIIOConnectorWorker.get_finished/MoRIIOWrapper._handle_release_message of the file vllm/distributed/kv_transfer/kv_connector/v1/moriio/moriio_connector.py of the component MoRIIO Acknowledgement Handler. Performing a manipulation of the argument request_id/kv_transfer_params results in resource consumption. It is possible to initiate the attack remotely. The project was informed of the problem early through a pull request but has not reacted yet.

CVSS v3
5.3
EG Score
5.3(high)
EG Risk
39(Track)
EG Risk 39/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity53% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

September 16, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 16, 2026
No patch confirmed yet. Sources: github_pr.
generic

GitHub - vllm-project/vllm: A high-throughput and memory-efficient inference and serving engine for LLMs · GitHub

https://github.com/vllm-project/vllm/
github_pr

[Bugfix] Fix MoRIIO pending ACK resource exhaustion vulnerability

Upstream fix in progress (PR #50674 · vllm-project/vllm, state=open)

https://github.com/vllm-project/vllm/pull/50674

Vendor Advisories for CVE-2026-92220(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 18× in last 7d / 18× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-19 21:08 UTCEG score recompute
  2. 2026-09-19 21:08 UTCGHSA enrichment
  3. 2026-09-18 21:14 UTCEG score recompute
  4. 2026-09-18 21:14 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-17 20:56 UTCEG score recompute
  7. 2026-09-17 20:56 UTCGHSA enrichment
  8. 2026-09-17 19:32 UTCEPSS rescore
  9. 2026-09-16 21:02 UTCEG score recompute
  10. 2026-09-16 21:02 UTCGHSA enrichment
  11. 2026-09-16 19:49 UTCEG score recompute
  12. 2026-09-16 19:49 UTCGHSA enrichment
  13. 2026-09-16 18:05 UTCEG score recompute
  14. 2026-09-16 18:05 UTCGHSA enrichment
  15. 2026-09-16 14:09 UTCEPSS rescore
  16. 2026-09-16 03:24 UTCEG score recompute
  17. 2026-09-16 02:33 UTCEG score recompute
  18. 2026-09-16 02:32 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-92220?
CVE-2026-92220 is a medium vulnerability published on September 16, 2026. A vulnerability was found in vllm-project vLLM 0.26.0/0.27.0. Affected is the function MoRIIOConnectorScheduler.requestfinished/MoRIIOConnectorWorker.getfinished/MoRIIOWrapper.handlereleasemessage of the file vllm/distributed/kvtransfer/kvconnector/v1/moriio/moriioconnector.py of the component…
When was CVE-2026-92220 disclosed?
CVE-2026-92220 was first published in the National Vulnerability Database on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-92220 actively exploited?
CVE-2026-92220 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 56.8% of all scored CVEs.
What is the CVSS score of CVE-2026-92220?
CVE-2026-92220 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-92220?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-92220, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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