{"answers":{"affected":"1 open source package ship an affected version, including executable-stories-formatters.","exploited":"There is no known exploitation of MAL-2026-5252 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-2026-5252 is a malicious package in executable-stories-formatters, published on 5 Jun 2026."},"fix_prompt":"MAL-2026-5252 is a malicious package: executable-stories-formatters (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-2026-5252/ (Markdown: https://insights.sbomify.com/MAL-2026-5252/index.md)","id":"MAL-2026-5252","markdown":"https://insights.sbomify.com/MAL-2026-5252/index.md","name":"MAL-2026-5252","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"No concrete installer-harm indicators were identified in this version of the package. No lifecycle hooks, hardcoded network destinations, credential reads, or known dropper fingerprints surfaced during review. Coverage of the package contents was partial, so a human reviewer should confirm before granting full trust.\n\nThe Miasma malware is a self-propagating worm that spreads across the npm registry by abusing weaponized `binding.gyp` files to achieve execution during package installation, bypassing security tools that only inspect package lifecycle scripts. Upon execution, the malware attempts to exfiltrate credentials and OIDC tokens for various cloud and registry services, and propagates by compromising other packages managed by the stolen accounts or committing backdoor files to GitHub repositories.","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 executable-stories-formatters (npm)","id":"MAL-2026-5252","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":[],"last_affected":[],"package":"executable-stories-formatters","purl":"pkg:npm/executable-stories-formatters","source":"MAL-2026-5252"}],"products":null,"published":"2026-06-05","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-2026-5252/"}