{"answers":{"affected":"1 open source package ship an affected version, including testpackagemanyhttpsgo.","exploited":"There is no known exploitation of MAL-2026-5840 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-2026-5840 is a malicious package in testpackagemanyhttpsgo, published on 15 Jun 2026."},"fix_prompt":"MAL-2026-5840 is a malicious package: testpackagemanyhttpsgo (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-2026-5840/ (Markdown: https://insights.sbomify.com/MAL-2026-5840/index.md)","id":"MAL-2026-5840","markdown":"https://insights.sbomify.com/MAL-2026-5840/index.md","name":"MAL-2026-5840","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"At install time, setup.py fetches https://tmpfiles.org/dl/wawHVGgfydD7/6a306c5f03a52.exe via urllib, writes the response to disk, and executes it with `os.system(\"cmd /c start 6a306c5f03a52.exe\")`. tmpfiles.org is an anonymous, throwaway file-hosting service; the URL is unpinned and unverified, the payload is an opaque Windows executable, and the package's metadata (author and description both equal to the package name) is placeholder content consistent with a throwaway publisher account. Any Windows host running `pip install` for this package will fetch and execute attacker-controlled bytes automatically, with no opt-in or verification.\n\nDuring installation, the code attempts to download and start a malicious executable.\n\nLikely related to 2025-08-raknet-testing-package.\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\nCampaign: 2026-06-easyaillm\n\nReasons (based on the campaign):\n\n - Downloads and executes a remote executable.\n\n - obfuscation\n\n - malware\n\n - tool:mshta","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 testpackagemanyhttpsgo (PyPI)","id":"MAL-2026-5840","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":"testpackagemanyhttpsgo","purl":"pkg:pypi/testpackagemanyhttpsgo","source":"MAL-2026-5840"}],"products":null,"published":"2026-06-15","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-2026-5840/"}