How severe is CVE-2026-44484?

CVE-2026-44484 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-44484 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-44484?

CVE-2026-44484 primarily affects Lightningai Pytorch Lightning. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-44484?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-44484 have an EU (EUVD) identifier?

Yes. CVE-2026-44484 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30303.

When was CVE-2026-44484 published?

CVE-2026-44484 was published on 2026-05-14 and last updated on 2026-06-30.

CVE-2026-44484

CVE-2026-44484 is a critical-severity vulnerability in Lightningai Pytorch Lightning with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-506.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30303
Weakness: CWE-506
Affected product: Lightningai Pytorch Lightning
Published: 2026-05-14
Last modified: 2026-06-30

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.

Frequently asked questions

What is CVE-2026-44484?: 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.
How severe is CVE-2026-44484?: CVE-2026-44484 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-44484 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-44484?: CVE-2026-44484 primarily affects Lightningai Pytorch Lightning. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-44484?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-44484 have an EU (EUVD) identifier?: Yes. CVE-2026-44484 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30303.
When was CVE-2026-44484 published?: CVE-2026-44484 was published on 2026-05-14 and last updated on 2026-06-30.

References

Affected products (2)

cpe:2.3:a:lightningai:pytorch_lightning:2.6.2:*:*:*:*:python:*:*
cpe:2.3:a:lightningai:pytorch_lightning:2.6.3:*:*:*:*:python:*:*

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