PYSEC-2026-3624

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/lightning/PYSEC-2026-3624.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-3624
Aliases
Published
2026-07-15T18:16:48.743Z
Modified
2026-08-19T11:30:03.479411168Z
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/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:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
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.

References

Affected packages

PyPI / lightning

Package

Name
lightning
View open source insights on deps.dev
Purl
pkg:pypi/lightning

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.8.0rc1
1.8.0rc2
1.8.0
1.8.0.post1
1.8.1
1.8.2
1.8.3
1.8.3.post0
1.8.3.post1
1.8.3.post2
1.8.4
1.8.4.post0
1.8.5
1.8.5.post0
1.8.6
1.9.0rc0
1.9.0
1.9.1
1.9.2
1.9.3
1.9.4
1.9.5
2.*
2.0.0rc0
2.0.0
2.0.1
2.0.1.post0
2.0.2
2.0.3
2.0.4
2.0.5
2.0.6
2.0.7
2.0.8
2.0.9
2.0.9.post0
2.1.0rc0
2.1.0rc1
2.1.0
2.1.1
2.1.2
2.1.3
2.1.4
2.2.0rc0
2.2.0
2.2.0.post0
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.3.0.dev20240318
2.3.0.dev20240324
2.3.0.dev20240328
2.3.0.dev20240331
2.3.0.dev20240407
2.3.0.dev20240414
2.3.0.dev20240421
2.3.0.dev20240428
2.3.0.dev20240505
2.3.0.dev20240519
2.3.0.dev20240526
2.3.0.dev20240602
2.3.0.dev20240609
2.3.0.dev20240616
2.3.0.dev20240623
2.3.0
2.3.1
2.3.2
2.3.3
2.4.0.dev20240630
2.4.0.dev20240707
2.4.0.dev20240714
2.4.0.dev20240721
2.4.0.dev20240728
2.4.0.dev20240804
2.4.0.dev20240811
2.4.0.dev20240818
2.4.0.dev20240825
2.4.0.dev20240901
2.4.0.dev20240908
2.4.0.dev20240915
2.4.0.dev20240922
2.4.0.dev20240929
2.4.0.dev20241006
2.4.0.dev20241013
2.4.0.dev20241020
2.4.0
2.5.0.dev20241027
2.5.0.dev20241103
2.5.0.dev20241110
2.5.0.dev20241117
2.5.0.dev20241124
2.5.0.dev20241201
2.5.0.dev20241208
2.5.0.dev20241215
2.5.0.dev20241222
2.5.0.dev20241229
2.5.0.dev20250105
2.5.0.dev20250112
2.5.0.dev20250119
2.5.0.dev20250126
2.5.0.dev20250202
2.5.0.dev20250209
2.5.0.dev20250216
2.5.0.dev20250223
2.5.0.dev20250302
2.5.0.dev20250309
2.5.0.dev20250316
2.5.0rc0
2.5.0
2.5.0.post0
2.5.1.dev20250323
2.5.1.dev20250330
2.5.1.dev20250406
2.5.1.dev20250413
2.5.1.dev20250420
2.5.1.dev20250427
2.5.1.dev20250504
2.5.1.dev20250511
2.5.1.dev20250518
2.5.1.dev20250525
2.5.1.dev20250601
2.5.1.dev20250608
2.5.1.dev20250615
2.5.1.dev20250622
2.5.1rc0
2.5.1rc1
2.5.1rc2
2.5.1
2.5.1.post0
2.5.2
2.5.3
2.5.4
2.5.5
2.5.6
2.6.0.dev0
2.6.0.dev20250629
2.6.0.dev20250706
2.6.0.dev20250713
2.6.0.dev20250720
2.6.0.dev20250727
2.6.0.dev20250803
2.6.0.dev20250810
2.6.0.dev20250817
2.6.0.dev20250824
2.6.0.dev20250831
2.6.0.dev20250914
2.6.0.dev20250921
2.6.0.dev20250928
2.6.0.dev20251005
2.6.0.dev20251012
2.6.0.dev20251019
2.6.0.dev20251026
2.6.0.dev20251102
2.6.0.dev20251109
2.6.0.dev20251116
2.6.0.dev20251123
2.6.0.dev20251130
2.6.0.dev20251207
2.6.0.dev20251214
2.6.0.dev20251221
2.6.0.dev20251228
2.6.0.dev20260104
2.6.0.dev20260111
2.6.0.dev20260118
2.6.0.dev20260125
2.6.0
2.6.1.dev20260201
2.6.1
2.6.4
2.6.5

Database specific

source 
"https://github.com/pypa/advisory-database/blob/main/vulns/lightning/PYSEC-2026-3624.yaml"