{"answers":{"affected":"1 open source package ship an affected version, including fastapi-middleware-cors.","exploited":"There is no known exploitation of MAL-2026-1422 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-2026-1422 is a malicious package in fastapi-middleware-cors, published on 13 Mar 2026."},"fix_prompt":"MAL-2026-1422 is a malicious package: fastapi-middleware-cors (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-2026-1422/ (Markdown: https://insights.sbomify.com/MAL-2026-1422/index.md)","id":"MAL-2026-1422","markdown":"https://insights.sbomify.com/MAL-2026-1422/index.md","name":"MAL-2026-1422","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Library disguised as FastAPI helper is executing obfuscated code during importing the module. The code is highly obfuscated; the code seems to contain an installation beacon reporting to a Telegram channel.\n\nThe package name appears as a dependency in a few Github repositories created long before publishing it, suggesting it might be an attempt to hijack the name that was previously wrongly generated by AI.\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\nCampaign: 2026-03-fastapi-middleware-cors\n\nReasons (based on the campaign):\n\n - typosquatting\n\n - obfuscation\n\n - exfiltration-generic","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 fastapi-middleware-cors (PyPI)","id":"MAL-2026-1422","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":"fastapi-middleware-cors","purl":"pkg:pypi/fastapi-middleware-cors","source":"MAL-2026-1422"}],"products":null,"published":"2026-03-13","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-2026-1422/"}