CVE-2026-94625

MEDIUMPre-NVD 5.35.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 5.3 from GitHub Security Advisory published 2026-09-22. A secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source

Also known asEUVD-2026-84219 (ENISA EUVD) · GHSA-9p52-m77h-4wq5 (GitHub Security Advisories) · PYSEC-2026-4007 (OSV.dev)Source: ENISA EUVD

5.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

vLLM through 0.29.0 contains a resource exhaustion vulnerability in MooncakeConnector where rejected prefill requests create ownerless transfer placeholders that are never reclaimed. Attackers can send rejected requests to exhaust sender task pools, causing valid requests to be delayed by up to 480 seconds while health checks continue returning success.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity53% × 45%
Impact severity (EG Severity): CVSS 5.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
44th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.3): severity, escalated by confirmed exploitation. This CVE's 5.3 is its impact severity (EG Severity), not escalated.

EG Severity
5.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 21, 2026

Last Modified

September 29, 2026

Advisory Details (4)

Auto-updated Sep 21, 2026
Patch available. Sources: github_pr.
Web page

vLLM through 0.29.0 Resource Exhaustion via Ownerless Mooncake Transfer Placeholders | Advisories | VulnCheck

https://www.vulncheck.com/advisories/vllm-through-0.29.0-resource-exhaustion-via-ownerless-mooncake-transfer-placeholders
GitHub pull request

fix(security): bound lifetime of ownerless Mooncake transfer placeholders

Upstream fix in progress (PR #51236 · vllm-project/vllm, state=open)

https://github.com/vllm-project/vllm/pull/51236
Web page

vllm/vllm/distributed/kv_transfer/kv_connector/v1/mooncake/mooncake_connector.py at v0.29.0 · vllm-project/vllm · GitHub

https://github.com/vllm-project/vllm/blob/v0.29.0/vllm/distributed/kv_transfer/kv_connector/v1/mooncake/mooncake_connector.py#L1234-L1242
Web page

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

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

Vendor Advisories for CVE-2026-94625(2)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhoai/odh-kserve-storage-initializer-rhel9:17909585492026-10-19redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
vllm0.0.1 ... 0.9.2 (97 versions)
  • every version up to 0.30.0: fixed in 0.30.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 55× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 96 is merged into the row it repeats.

  1. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  3. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  4. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  5. 2026-10-29 13:55 UTCOSV refresh
  6. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  7. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  8. 2026-10-26 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  9. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  10. 2026-10-25 13:49 UTCEG score recompute
  11. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  12. 2026-10-23 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  13. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  14. 2026-10-22 00:33 UTCEG score recompute
  15. 2026-10-22 00:33 UTCVendor advisory
  16. 2026-10-22 00:32 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  17. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  18. 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  19. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  20. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  21. 2026-10-18 02:58 UTCEG score recompute
  22. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  23. 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  24. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  25. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
Show 70 more
  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  2. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  3. 2026-10-12 14:41 UTCEG score recompute
  4. 2026-10-11 19:11 UTCEG score recompute
  5. 2026-10-11 16:27 UTCEG score recompute
  6. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  7. 2026-10-11 13:40 UTCEG score recompute
  8. 2026-10-11 11:09 UTCEG score recompute
  9. 2026-10-11 11:08 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-10-10 13:14 UTCEG score recompute
  12. 2026-10-10 13:14 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  13. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  14. 2026-10-09 15:20 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  15. 2026-10-08 17:18 UTCEG score recompute
  16. 2026-10-08 17:18 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  17. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  18. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  19. 2026-10-07 18:12 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  20. 2026-10-06 20:19 UTCEG score recompute
  21. 2026-10-06 20:19 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  22. 2026-10-06 15:19 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  23. 2026-10-05 22:24 UTCEG score recompute
  24. 2026-10-05 22:24 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  25. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  26. 2026-10-05 00:26 UTCEG score recompute
  27. 2026-10-05 00:26 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  28. 2026-10-04 23:23 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  29. 2026-10-04 02:29 UTCEG score recompute
  30. 2026-10-04 02:29 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  31. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  32. 2026-10-03 04:35 UTCEG score recompute
  33. 2026-10-03 04:35 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  34. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  35. 2026-10-02 06:41 UTCEG score recompute
  36. 2026-10-02 06:40 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  37. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  38. 2026-10-01 08:45 UTCEG score recompute
  39. 2026-10-01 08:45 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  40. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  41. 2026-09-30 10:52 UTCEG score recompute
  42. 2026-09-30 10:52 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  43. 2026-09-29 12:56 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  44. 2026-09-29 03:05 UTCEG score recompute
  45. 2026-09-29 03:05 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  46. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  47. 2026-09-28 05:08 UTCEG score recompute
  48. 2026-09-28 05:08 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  49. 2026-09-27 13:49 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  50. 2026-09-27 07:15 UTCEG score recompute
  51. 2026-09-27 07:15 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  52. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  53. 2026-09-26 09:20 UTCEG score recompute
  54. 2026-09-26 09:20 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  55. 2026-09-25 11:26 UTCEG score recompute
  56. 2026-09-25 11:26 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  57. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  58. 2026-09-24 13:31 UTCEG score recompute
  59. 2026-09-24 13:31 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  60. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  61. 2026-09-23 15:36 UTCEG score recompute
  62. 2026-09-23 15:36 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  63. 2026-09-23 15:15 UTCEG score recompute
  64. 2026-09-23 15:15 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  65. 2026-09-22 20:32 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  66. 2026-09-22 20:11 UTCEG score recompute
  67. 2026-09-22 20:11 UTCGHSA enrichmentGHSA-9p52-m77h-4wq5 · GitHub CVSS 5.3
  68. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  69. 2026-09-21 22:17 UTCEG score recomputeFirst assessed: 5.3 MEDIUM
  70. 2026-09-21 22:15 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-94625?
CVE-2026-94625 is a medium-severity vulnerability; its CVE record was published on September 21, 2026. vLLM through 0.29.0 contains a resource exhaustion vulnerability in MooncakeConnector where rejected prefill requests create ownerless transfer placeholders that are never reclaimed. Attackers can send rejected requests to exhaust sender task pools, causing valid requests to be delayed by up to 480…
When was CVE-2026-94625 made public?
CVE-2026-94625 was made public on August 6, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on September 21, 2026. EchelonGraph's copy of the record carries a last-modified date of September 29, 2026; the record at its source may have been updated since.
Is CVE-2026-94625 actively exploited?
CVE-2026-94625 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (44th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-94625?
CVE-2026-94625 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-94625?
A fix for CVE-2026-94625 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-94625 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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