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Exploitation reportedNot in CISA KEV yetFix available

CVE-2023-43654

Exploitation reported by one source. First attested on 2025-11-26 by GCVE · shadowserver.

  • Published2023-09-28
  • Fixed in0.8.2
  • WeaknessCWE-918

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2023-09-2823:15CVE publishedNVD
  2. 2025-11-2603:32Listed as exploited by GCVEGCVE
  3. 2025-11-2603:32Exploitation first reportedGCVE

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-43654?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-43654?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP · OSV
Pytorch torchserve
BranchAffectedFixed in
0.x≥ 0.1.0, < 0.8.20.8.2

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • pytorch serve
    Affected
    • = >= 0.1.0, < 0.8.2no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-09-28

Fix

  1. Update Pytorch torchserve to 0.8.2

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
2 repositories, unverifiedOligoCyberSecurity/ShellTorchCheckerOligoCyberSecurity/CVE-2023-43654
PoC-in-GitHub
Metasploit modules
1 moduleexploit/multi/http/torchserver_cve_2023_43654rank: excellentModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2023-09-28
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-8fxr-qfr9-p34w

Frequently asked questions

What is CVE-2023-43654?

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.

Is CVE-2023-43654 actively exploited?

A proof-of-concept exploit exists for CVE-2023-43654, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-43654?

CVE-2023-43654 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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