CVE-2026-47155Network attack vector

Supply-chain integrity loss via incomplete revision propagation

Published Jun 22, 2026 · Updated Jun 22, 2026

Artifact authenticity failure in vLLM before 0.22.0 allows attackers to load unpinned code, weights, or processors into pinned deployments. Several model loaders pass revision=None to sibling weights or omit code_revision when resolving dynamic modules, so nested artifacts use the default repository revision. Exploitation requires control of a referenced repository's mutable default revision; the advisory reports integrity and limited confidentiality impact, not direct API compromise.

CVSS severity6.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Artifact authenticity failure in vLLM before 0.22.0 allows attackers to load unpinned code, weights, or processors into pinned deployments. Several model loaders pass revision=None to sibling weights or omit code_revision when resolving dynamic modules, so nested artifacts use the default repository revision. Exploitation requires control of a referenced repository's mutable default revision; the advisory reports integrity and limited confidentiality impact, not direct API compromise.

The record

CVE
CVE-2026-47155
Published
Jun 22, 2026
Updated
Jun 22, 2026
Vendor
vLLM Project
Product
vLLM
Classifications
CWE-345, T1195.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.22.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

vLLM Project · vLLMversion=< 0.22.0

Published CVSS scores

6.5GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-345Insufficient Verification of Data Authenticity
T1195.002Compromise Software Supply Chain

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo