{"answers":{"affected":"1 open source package ship an affected version, including testingpy.","exploited":"There is no known exploitation of MAL-2026-99 in the wild and no public exploit code.","fix":"Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.","what":"MAL-2026-99 is a malicious package in testingpy, published on 6 Jan 2026."},"fix_prompt":"MAL-2026-99 is a malicious package: testingpy (PyPI). Every version was published to cause harm.\n\nTask:\n1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.\n2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.\n3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.\n4. If the package is not used anywhere, say so and change nothing.\n\nReference: https://insights.sbomify.com/MAL-2026-99/ (Markdown: https://insights.sbomify.com/MAL-2026-99/index.md)","id":"MAL-2026-99","markdown":"https://insights.sbomify.com/MAL-2026-99/index.md","name":"MAL-2026-99","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Package clones a legitimate library and adds a hidden code that downloads a malicious script. The script then downloads an archive with malicious executable in the version appropriate to the system architecture, and ensures persistency by adding automatically started service entries. The remote code is a Go-based inforstealer and backdoor previously attributed to Northkorean cybercrime activities. In this campaign, the malicious code is not immediately introduced in the typosquatted package, but added with an update.\n\nBesides an infostealer, the package modifies the cloned Bittensor library to collect keys.\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\nCampaign: 2026-01-gztensor-cli\n\nReasons (based on the campaign):\n\n - crypto-related\n\n - action-hidden-in-lib-usage\n\n - Downloads and executes a remote executable.\n\n - clones-real-package\n\n - peristence-autorun\n\n - typosquatting\n\n - obfuscation\n\n - backdoor\n\n - infostealer","ecosystems":["PyPI"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":false,"headline":"Malicious code in testingpy (PyPI)","id":"MAL-2026-99","indexable":true,"kev":null,"kind":"malicious","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"PyPI","fixed":[],"introduced":[],"last_affected":[],"package":"testingpy","purl":"pkg:pypi/testingpy","source":"MAL-2026-99"}],"products":null,"published":"2026-01-06","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"OpenSSF Malicious Packages","prefix":"MAL"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":null,"url":"https://insights.sbomify.com/MAL-2026-99/"}