{"answers":{"affected":"4 open source packages ship an affected version, including pytorch-lightning and lightning. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-44484 in the wild and no public exploit code.","fix":"Upgrade pytorch-lightning to 2.6.4 or later.","what":"CVE-2026-44484 is a critical vulnerability in Lightning-AI pytorch-lightning, published on 14 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-44484 and fix it if it is affected.\n\nWhat it is: CVE-2026-44484 is a critical vulnerability in Lightning-AI pytorch-lightning, published on 14 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-44484 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- pytorch-lightning (PyPI): affected all versions; no fix listed\n- pytorch-lightning (PyPI): affected all versions; no fix listed\n- pytorch-lightning (PyPI): affected from 2.6.2; fixed in 2.6.4\n- lightning (PyPI): affected from 2.6.2; fixed in 2.6.4\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-44484/ (Markdown: https://insights.sbomify.com/CVE-2026-44484/index.md)","id":"CVE-2026-44484","markdown":"https://insights.sbomify.com/CVE-2026-44484/index.md","name":"CVE-2026-44484","record":{"aliases":["GHSA-w37p-236h-pfx3","PYSEC-2026-3973","PYSEC-2026-508"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"PyTorch Lightning library","requires_auth":"none","summary":"Attackers can harvest credentials via malicious code in compromised PyTorch Lightning PyPI packages, affecting AI developers using the library.","user_interaction":"not_required","vuln_class":"supply_chain"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"pytorch_lightning","vendor":"lightningai"}],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-829","name":"Inclusion of Functionality from Untrusted Control Sphere"},{"id":"CWE-506","name":"Embedded Malicious Code"}],"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.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Compromise of PyTorch Lightning PyPi Package Versions","id":"CVE-2026-44484","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"supply_chain","year":"2026"},"n_packages":4,"n_references":1,"next":{"headline":"Axios: Proxy-Authorization header leaks to redirect target when proxy is re-evaluated to direct connection","id":"CVE-2026-44486"},"packages":[{"ecosystem":"PyPI","fixed":["2.6.4"],"introduced":["2.6.2"],"last_affected":[],"package":"lightning","purl":"pkg:pypi/lightning","source":"PYSEC-2026-3973"},{"ecosystem":"PyPI","fixed":[],"introduced":[],"last_affected":[],"package":"pytorch-lightning","purl":null,"source":"GHSA-w37p-236h-pfx3"},{"ecosystem":"PyPI","fixed":[],"introduced":[],"last_affected":[],"package":"pytorch-lightning","purl":"pkg:pypi/pytorch-lightning","source":"GHSA-w37p-236h-pfx3"},{"ecosystem":"PyPI","fixed":["2.6.4"],"introduced":["2.6.2"],"last_affected":[],"package":"pytorch-lightning","purl":"pkg:pypi/pytorch-lightning","source":"PYSEC-2026-508"}],"prev":{"headline":"RVF: Prototype pollution in @rvf/set-get reachable via @rvf/core preprocessFormData (HTTP form data)","id":"CVE-2026-44483"},"products":["pytorch-lightning"],"published":"2026-05-14","related":[{"cvss_score":9.8,"headline":"RCE via Property/Class Pollution in lightning-ai/pytorch-lightning","id":"CVE-2024-5452","kev_date_added":null,"published":"2024-06-06"},{"cvss_score":9.1,"headline":"Arbitrary File Write/Overwrite in lightning-ai/pytorch-lightning","id":"CVE-2024-8019","kev_date_added":null,"published":"2025-03-20"},{"cvss_score":9.1,"headline":"Arbitrary File Write via /v1/runs API endpoint in lightning-ai/pytorch-lightning","id":"CVE-2024-5980","kev_date_added":null,"published":"2024-06-27"},{"cvss_score":8.8,"headline":"PyTorch Lightning load_from_checkpoint has an insecure checkpoint deserialization","id":"CVE-2026-31221","kev_date_added":null,"published":"2026-05-12"},{"cvss_score":8.4,"headline":"PyTorch Lightning Arbitrary Code Execution via _instantiator Hyperparameter","id":"CVE-2026-58659","kev_date_added":null,"published":"2026-07-15"},{"cvss_score":7.8,"headline":"Deserialization of Untrusted Data in pytorchlightning/pytorch-lightning","id":"CVE-2021-4118","kev_date_added":null,"published":"2021-12-23"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["Lightning-AI"]},"summary":"Attackers can harvest credentials via malicious code in compromised PyTorch Lightning PyPI packages, affecting AI developers using the library.","url":"https://insights.sbomify.com/CVE-2026-44484/"}