{"answers":{"affected":"1 open source package ship an affected version, including sp-api-dev-assistant-mcp-server.","exploited":"There is no known exploitation of MAL-2026-5853 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-2026-5853 is a malicious package in sp-api-dev-assistant-mcp-server, published on 16 Jun 2026."},"fix_prompt":"MAL-2026-5853 is a malicious package: sp-api-dev-assistant-mcp-server (npm). 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-2026-5853/ (Markdown: https://insights.sbomify.com/MAL-2026-5853/index.md)","id":"MAL-2026-5853","markdown":"https://insights.sbomify.com/MAL-2026-5853/index.md","name":"MAL-2026-5853","record":{"aliases":["GHSA-hgm9-w4fm-65m9"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Package contains only package.json and README.md, with the README explicitly stating it is a proof-of-concept squatting an unclaimed npm name that was referenced as a dependency in an Amazon-internal repository. The version is set to 99.9.0 to win semver resolution against any internal release. The current tarball ships no `scripts`, no `main`, and no source files, so installing this version performs no code execution and exfiltrates no data — the harm is limited to the name being held by a non-Amazon party who could publish payload-bearing future versions. Installers whose package manager resolves the public npm registry for this name would receive whatever the squatter publishes next.\n\nAny computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.","ecosystems":["npm"],"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 sp-api-dev-assistant-mcp-server (npm)","id":"MAL-2026-5853","indexable":true,"kev":null,"kind":"malicious","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":[],"package":"sp-api-dev-assistant-mcp-server","purl":"pkg:npm/sp-api-dev-assistant-mcp-server","source":"MAL-2026-5853"}],"products":null,"published":"2026-06-16","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-2026-5853/"}