{"answers":{"affected":"1 open source package ship an affected version, including kcvlib.","exploited":"There is no known exploitation of MAL-2026-3131 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-2026-3131 is a malicious package in kcvlib, published on 28 Apr 2026."},"fix_prompt":"MAL-2026-3131 is a malicious package: kcvlib (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-2026-3131/ (Markdown: https://insights.sbomify.com/MAL-2026-3131/index.md)","id":"MAL-2026-3131","markdown":"https://insights.sbomify.com/MAL-2026-3131/index.md","name":"MAL-2026-3131","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"During import, the package downloads and executes obfuscated code. It appears to be an infostealer framework\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\nCampaign: 2026-04-kcvlib\n\nReasons (based on the campaign):\n\n - obfuscation\n\n - Downloads and executes a remote malicious script.\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 kcvlib (PyPI)","id":"MAL-2026-3131","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":"kcvlib","purl":"pkg:pypi/kcvlib","source":"MAL-2026-3131"}],"products":null,"published":"2026-04-28","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-2026-3131/"}