CVE-2026-85668Public exploitNetwork attack vectorHinoki check available

Unauthenticated file disclosure via unconstrained model path

Published Sep 4, 2026 · Updated Sep 4, 2026

Path traversal in XorbitsAI Xinference 3.3.0 and earlier allows remote attackers to read selected server files through the auto-register API. The POST /v1/models/llm/auto-register endpoint passes model_path to _resolve_config_and_dir(), which joins it to fixed configuration filenames without path confinement and reflects parsed values. The API is unauthenticated by default; exposure permits probing and partial disclosure of config.json, tokenizer_config.json, and chat_template.jinja, not arbitrary byte-for-byte file reads.

CVSS severity8.7
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in XorbitsAI Xinference 3.3.0 and earlier allows remote attackers to read selected server files through the auto-register API. The POST /v1/models/llm/auto-register endpoint passes model_path to _resolve_config_and_dir(), which joins it to fixed configuration filenames without path confinement and reflects parsed values. The API is unauthenticated by default; exposure permits probing and partial disclosure of config.json, tokenizer_config.json, and chat_template.jinja, not arbitrary byte-for-byte file reads.

The record

CVE
CVE-2026-85668
Published
Sep 4, 2026
Updated
Sep 4, 2026
Vendor
XorbitsAI
Product
Xinference
Classifications
CWE-73, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=0 <=3.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

XorbitsAI · Xinferenceversion=0 <=3.3.0

Published CVSS scores

7.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA: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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-73External Control of File Name or Path
T1005Data from Local System

Public exploit references

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

Technologies

Your stack

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Your stack

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