{"answers":{"affected":"1 open source package ship an affected version, including dac-tools.","exploited":"There is no known exploitation of MAL-2026-15938 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-2026-15938 is a malicious package in dac-tools, published on 6 Sep 2026."},"fix_prompt":"MAL-2026-15938 is a malicious package: dac-tools (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-2026-15938/ (Markdown: https://insights.sbomify.com/MAL-2026-15938/index.md)","id":"MAL-2026-15938","markdown":"https://insights.sbomify.com/MAL-2026-15938/index.md","name":"MAL-2026-15938","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On import of dac_tools, the top-level __init__.py executes `whoami` and `hostname` via subprocess, concatenates the results into a DNS label, and triggers socket.getaddrinfo against `\u003clabel\u003e.depconf-dac.dac2vlrk5gm3aemg9ptgq3kye1ky9kd4e.p.0xy.us`, causing the installer's OS username and hostname to be transmitted to an attacker-controlled authoritative DNS server on every import. A second beacon in CDHApiClient.get_project_credentials_with_client_credentials performs a DNS lookup to `cdh-intercept.depconf-dac.dac2vlrk5gm3aemg9ptgq3kye1ky9kd4e.p.0xy.us` and returns fabricated AWS credentials, mimicking an internal `cdh_api_client` API surface so that any caller invoking the shim signals the attacker. The package name shadows an internal dependency and is published at version 999.0.0 to win resolution against the internal package - the canonical dependency-confusion shape.\n\nInstalling the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.\n\n---\n\nCategory: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research \u0026 co, with clearly low-harm possibilities.\n\nCampaign: GENERIC-standard-pypi-install-pentest\n\nReasons (based on the campaign):\n\n - The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.\n\n - The package overrides the install command in setup.py to execute malicious code during installation.\n\nThe OpenSSF Package Analysis project identified 'dac-tools' @ 999.0.0 (pypi) as malicious.\n\nIt is considered malicious because:\n\n- The package executes one or more commands associated with malicious behavior.","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 dac-tools (PyPI)","id":"MAL-2026-15938","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":"dac-tools","purl":"pkg:pypi/dac-tools","source":"MAL-2026-15938"}],"products":null,"published":"2026-09-06","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-2026-15938/"}