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Vulnerability record · CVE-2026-44484 · published 14 May 2026

CVE-2026-44484: Lightningai pytorch lightning inclusion from untrusted sphere vulnerability

Lightningai · Pytorch Lightning

PyTorch Lightning is a deep learning framework to pretrain and finetune AI models. Versions 2.6.2 and 2.6.2 have introduced functionality consistent with a credential harvesting mechanism.

9.3 CVSS 4.0 Critical EPSS 0.67% · top 50.0% CWE-506 · CWE-506CWE-829 · Inclusion from untrusted sphere
9.3CVSS 4.0 base score
0.67%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
15 Jul 2026Last modified by NVD

Description

PyTorch Lightning is a deep learning framework to pretrain and finetune AI models. Versions 2.6.2 and 2.6.2 have introduced functionality consistent with a credential harvesting mechanism.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

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

References

LinkTags
https://github.com/Lightning-AI/pytorch-lightning/security/advisories/GHSA-w37p-236h-pfx3 MitigationVendor Advisory
https://access.redhat.com/security/cve/CVE-2026-44484
https://bugzilla.redhat.com/show_bug.cgi?id=2477476
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44484.json

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Related vulnerabilities

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

9.8CVE-2024-5980Lightningai pytorch lightning path traversal vulnerabilityA vulnerability in the /v1/runs API endpoint of lightning-ai/pytorch-lightning v2.2.4 allows attackers to exploit path traversal when extracting tar.…EPSS 1.3%9.8CVE-2024-5452Lightningai pytorch lightning mass assignment vulnerabilityA remote code execution (RCE) vulnerability exists in the lightning-ai/pytorch-lightning library version 2.2.1 due to improper handling of deserializ…EPSS 27%9.8CVE-2022-0845Lightningai pytorch lightning code injection vulnerabilityCode Injection in GitHub repository pytorchlightning/pytorch-lightning prior to 1.6.0.EPSS 0.98%9.1CVE-2024-8019Lightningai pytorch lightning unrestricted file upload vulnerabilityIn lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the `LightningApp` when running on a Windows host. The vulnerability occur…EPSS 1.1%8.4CVE-2026-58659Lightningai pytorch lightning vulnerabilityPyTorch Lightning through 2.6.5, fixed in commit d710d68, contains a remote code execution vulnerability in the _load_state function that imports and…EPSS 0.63%7.8CVE-2026-31221Lightningai pytorch lightning deserialization of untrusted data vulnerabilityPyTorch-Lightning versions 2.6.0 and earlier contain an insecure deserialization vulnerability (CWE-502) in the checkpoint loading mechanism. The Lig…EPSS 0.55%7.8CVE-2021-4118Lightningai pytorch lightning deserialization of untrusted data vulnerabilitypytorch-lightning is vulnerable to Deserialization of Untrusted DataEPSS 0.98%7.5CVE-2024-8020Lightningai pytorch lightning vulnerabilityA vulnerability in lightning-ai/pytorch-lightning version 2.3.2 allows an attacker to cause a denial of service by sending an unexpected POST request…EPSS 0.63%

Source: NIST National Vulnerability Database (record CVE-2026-44484), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.