Vulnerability in pytorch-lightning (CVE-2026-44484)
Summary
Vulnerability in pytorch-lightning (CVE-2026-44484). Successful exploitation can lead to full system takeover.
Original description
The description as published by the source.
Security Advisory: Compromise of PyTorch Lightning PyPI Package Versions
Published: 2026-04-30
Last Updated: 2026-05-12
Github Advisory: CVE-2026-44484
We have identified a security incident affecting certain versions of one of our PyPI packages.
What happened
We have determined that one or more released versions of this package have been compromised and include malicious code.
Our current investigation indicates that the affected versions have introduced functionality consistent with a credential harvesting mechanism. We are still actively analysing the scope and behaviour of the code.
At this stage, the root cause of the compromise is still under investigation.
What versions are affected
We are currently working to confirm the exact set of impacted versions.
We have determined the following versions as affected and ask that you delete them from your systems:
2.6.22.6.3
We will update this advisory if the versions impacted by this vulnerability change.
What you should do immediately
If you have installed or are running any potentially affected versions:
- Assume the environment may be compromised
- Immediately rotate all credentials and secrets that may have been exposed, including:
- API keys
- Access tokens
- SSH keys
- Service account credentials
- Rebuild affected systems from a known clean state
- Pin PyTorch Lightning to version
2.6.1 - Re…
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-44484 has been found in pytorch-lightning.
Successful exploitation can lead to full system takeover. CVSS score: 9.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "pytorch-lightning CVE-2026-44484" on the vendor's site.
CVE-2026-44484 (pytorch-lightning) — CWE-506 / CVSS v3 9.8
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-506) exists in pytorch-lightning.
Check the vendor advisory for the affected versions of pytorch-lightning.
Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'pytorch-lightning' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'pytorch-lightning' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
pytorch-lightningを grep し、稼働しているサービス・バージョンを把握する。 -
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory github.com
- advisory nvd.nist.gov
- package github.com
- package pypi.org
- web github.com
- web access.redhat.com
- web bugzilla.redhat.com
- web security.access.redhat.com