CVE-2023-43654Public exploitNetwork attack vector

Unauthenticated server-side requests via unrestricted model URLs

Published Sep 28, 2023 · Updated Feb 13, 2025

Server-side request forgery in PyTorch TorchServe 0.1.0 through 0.8.1 allows remote attackers to request arbitrary model URLs. The model registration API accepts attacker-supplied locations because the default allowed_urls pattern permits every file, HTTP, and HTTPS URL, then stores the retrieved model on disk. Exploitation requires network reachability to the unauthenticated management API and can expose internal resources or write model files within the service account's permissions.

CVSS severity7.2
High
EPSS probability35.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in PyTorch TorchServe 0.1.0 through 0.8.1 allows remote attackers to request arbitrary model URLs. The model registration API accepts attacker-supplied locations because the default allowed_urls pattern permits every file, HTTP, and HTTPS URL, then stores the retrieved model on disk. Exploitation requires network reachability to the unauthenticated management API and can expose internal resources or write model files within the service account's permissions.

The record

CVE
CVE-2023-43654
Published
Sep 28, 2023
Updated
Feb 13, 2025
Vendor
PyTorch
Product
TorchServe
Classifications
CWE-918, CAPEC-664, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record 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=>= 0.1.0, < 0.8.2
  2. Affected versionversion=0.1.0 <0.8.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PyTorch · TorchServeversion=>= 0.1.0, < 0.8.2; version=0.1.0 <0.8.2

Published CVSS scores

7.2GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/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 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-918Server-Side Request Forgery (SSRF)
CAPEC-664Server Side Request Forgery
T1190Exploit Public-Facing Application

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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