{"answers":{"affected":"1 open source package ship an affected version, including pydanticc.","exploited":"There is no known exploitation of MAL-2026-13489 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-2026-13489 is a malicious package in pydanticc, published on 7 Aug 2026."},"fix_prompt":"MAL-2026-13489 is a malicious package: pydanticc (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-2026-13489/ (Markdown: https://insights.sbomify.com/MAL-2026-13489/index.md)","id":"MAL-2026-13489","markdown":"https://insights.sbomify.com/MAL-2026-13489/index.md","name":"MAL-2026-13489","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"pydanticc is a typosquat of the popular 'pydantic' package. Its setup.py defines a custom setuptools install command whose body is stored as a base64 string literal and reconstituted at install time via base64.b64decode + compile + exec, concealing the payload from plain reading of setup.py. On Linux, the decoded hook downloads an opaque executable from https://github.com/totti2188/8gp1Q7iZD3h4VW/releases/download/v1.3A/something (a personal GitHub account unrelated to the package's stated purpose), writes it to /tmp/something, marks it executable, and launches it detached via subprocess.Popen with start_new_session=True. The shipped Python module (djangoo/main.py) contains only a trivial hello() print with no pydantic-related functionality, so the package's real effect on installation is arbitrary remote code execution on the installer's host. The unpinned personal-account release URL, base64/exec obfuscation of the URL and Popen call, detached background execution, name-squat of a top-100 package, and stub content together constitute a classic install-time dropper.\n\nPackage imitates name of a popula library. During installation, obfuscated code downloads a malicious executable and starts it. It then exfiltrates at least cryptocurrency wallet data, probably more.\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\nCampaign: 2026-08-flasq\n\nReasons (based on the campaign):\n\n - typosquatting\n\n - The package overrides the install command in setup.py to execute malicious code during installation.\n\n - exfiltration-generic\n\n - Downloads and executes a remote executable.\n\n - obfuscation\n\n - exfiltration-crypto","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 pydanticc (PyPI)","id":"MAL-2026-13489","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":"pydanticc","purl":"pkg:pypi/pydanticc","source":"MAL-2026-13489"}],"products":null,"published":"2026-08-07","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-2026-13489/"}