Home/CVE/TorchServe is a tool for serving and scaling PyTorch models in production. TorchServe default configuration lacks proper
CVE

CVE-2023-43654

TorchServe is a tool for serving and scaling PyTorch models in production. TorchServe default configuration lacks proper

TorchServe is a tool for serving and scaling PyTorch models in production. TorchServe default configuration lacks proper input validation, enabling third parties to invoke remote HTTP download requests and write files to the disk. This issue could be taken advantage of to compromise the integrity of the system and sensitive data.

This issue is present in versions 0.1.0 to 0.8.1. A user is able to load the model of their choice from any URL that they would like to use. The user of TorchServe is responsible for configuring both the allowed_urls and specifying the model URL to be used.

A pull request to warn the user when the default value for allowed_urls is used has been merged in PR #2534. TorchServe release 0.8.2 includes this change. Users are advised to upgrade.

There are no known workarounds for this issue.

CRITICAL · CVSS 10 EPSS 0.91652
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 0% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-918Server-Side Request Forgery (SSRF)
▤

Affected Products & Versions

1
pytorch torchserve>= 0.1.0 and < 0.8.2
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI torchserve CRITICAL fixed in 0.8.2
⚠

Public Exploits & PoCs

2
nucleiPyTorch TorchServe SSRFcritical
pocpacketstormsecurity.com · PyTorch-Model-Server-Registration-Deserialization-Remote-...packetstormsecurity.com
▣

Scoring & Timeline

10
CRITICAL · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD28 Sep 2023 · 11:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/pytorch/serve/pull/2534Issue Tracking
https://github.com/pytorch/serve/releases/tag/v0.8.2Release Notes
https://github.com/pytorch/serve/security/advisories/GHSA-8fxr-qfr9-p34wVendor Advisory
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