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Vulnerability record · CVE-2023-43654 · published 28 September 2023

CVE-2023-43654: Pytorch torchserve server-side request forgery (ssrf) vulnerability

Pytorch · Torchserve

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.

9.8 CVSS 3.1 Critical EPSS 36% · top 1.6% CWE-918 · Server-side request forgery (SSRF)
9.8CVSS 3.1 base score
36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/175095/PyTorch-Model-Server-Registration-Deserialization-Remote-Code-Execution.html ExploitThird Party AdvisoryVDB Entry
https://github.com/pytorch/serve/pull/2534 Issue Tracking
https://github.com/pytorch/serve/releases/tag/v0.8.2 Release Notes
https://github.com/pytorch/serve/security/advisories/GHSA-8fxr-qfr9-p34w Vendor Advisory
http://packetstormsecurity.com/files/175095/PyTorch-Model-Server-Registration-Deserialization-Remote-Code-Execution.html ExploitThird Party AdvisoryVDB Entry
https://github.com/pytorch/serve/pull/2534 Issue Tracking
https://github.com/pytorch/serve/releases/tag/v0.8.2 Release Notes
https://github.com/pytorch/serve/security/advisories/GHSA-8fxr-qfr9-p34w Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-43654), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.