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PyTorch Lightning allows arbitrary code execution through checkpoint _instantiator hyperparameters

🗓️ 15 Jul 2026 18:31:58Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 27 Views

RCE in PyTorch Lightning through 2.6.5 via _instantiator hyperparameters in checkpoint files.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-58659
15 Jul 202617:02
–attackerkb
circl
Circl
CVE-2026-58659
15 Jul 202619:49
–circl
cve
CVE
CVE-2026-58659
15 Jul 202617:02
–cve
cvelist
Cvelist
CVE-2026-58659 PyTorch Lightning Arbitrary Code Execution via _instantiator Hyperparameter
15 Jul 202617:02
–cvelist
euvd
EUVD
EUVD-2026-44751
15 Jul 202617:02
–euvd
mend
Mend
CVE-2026-58659
15 Jul 202617:02
–mend
nvd
NVD
CVE-2026-58659
15 Jul 202618:16
–nvd
osv_cga
osv_cga
CGA-7QMR-X94Q-VWRQ
4 Sep 202612:00
–osv_cga
osv_ghsa
osv_ghsa
GHSA-QQMF-GPG7-G8GW PyTorch Lightning allows arbitrary code execution through checkpoint _instantiator hyperparameters
15 Jul 202618:31
–osv_ghsa
osv_pysec
osv_pysec
PYSEC-2026-3624
15 Jul 202618:16
–osv_pysec
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24 Sep 2026 15:39Current
8.3High risk
Vulners AI Score8.3
CVSS 3.17.8
CVSS 48.4
EPSS0.00626
SSVC
27