CVE-2026-58659

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Source
https://cve.org/CVERecord?id=CVE-2026-58659
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58659.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-58659
Published
2026-07-15T17:02:40.640Z
Modified
2026-07-19T03:31:13.293736586Z
Severity
  • 8.4 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
PyTorch Lightning Arbitrary Code Execution via _instantiator Hyperparameter
Details

PyTorch Lightning through 2.6.5, fixed in commit d710d68, contains a remote code execution vulnerability in the loadstate function that imports and executes attacker-controlled module names from checkpoint instantiator hyperparameters. Attackers can craft malicious checkpoint files that bypass weightsonly=True protections to execute arbitrary code when LightningModule.loadfromcheckpoint is called.

Database specific 
{
    "cwe_ids": [
        "CWE-470"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58659.json",
    "cna_assigner": "VulnCheck"
}
References

Affected packages

Git / github.com/lightning-ai/pytorch-lightning

Affected ranges

Type
GIT
Repo
https://github.com/lightning-ai/pytorch-lightning
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
be98784a1a03581b7051a355ae1084fd352d7cea
Fixed
d710d689510d50e800f53b3cd773cbca20b1f86f
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.6.5"
        }
    ],
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.0.1
0.0.2
0.1.1
0.1.2
0.10.0
0.2
0.2.1
0.4.0
0.4.1
0.4.2
0.4.3
0.4.4
0.4.5
0.4.6
0.4.7
0.4.9
0.5.0
0.5.1
0.5.2
0.5.2.1
0.6.0
0.7.0
0.7.1
0.7.2
0.7.3
0.7.4
0.7.5
0.7.6
0.8.0
0.8.1
0.8.2
0.8.3
0.8.4
0.8.5
0.9.0
1.*
1.0.0
1.0.1
1.0.2
1.0.3
1.0.4
1.1.0
1.1.0rc1
1.1.0rc2
1.2.0
1.2.0rc1
1.2.0rc2
1.3.0
1.3.0rc0
1.3.0rc1
1.3.0rc2
1.3.0rc3
1.4.0
1.4.0rc0
1.4.0rc1
1.4.0rc2
1.5.0
1.5.0rc0
1.5.0rc1
1.6.0
1.6.0rc0
1.6.0rc1
1.7.0
1.7.0rc0
1.7.0rc1
1.8.0
1.8.0rc0
1.8.0rc1
1.8.0rc2
1.9.0
1.9.0rc0
2.*
2.0.0
2.0.0rc0
2.1.0
2.1.0.rc0
2.1.0.rc1
2.2.0
2.2.0.rc0
2.3.0
2.4.0
2.5.0
2.5.0.post0
2.5.0rc0
2.6.0
2.6.4
app/0.*
app/0.6.0rc0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58659.json"