{"answers":{"affected":"1 open source package ship an affected version, including sme-auth-core.","exploited":"There is no known exploitation of MAL-2026-12207 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-2026-12207 is a malicious package in sme-auth-core, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12207 is a malicious package: sme-auth-core (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-2026-12207/ (Markdown: https://insights.sbomify.com/MAL-2026-12207/index.md)","id":"MAL-2026-12207","markdown":"https://insights.sbomify.com/MAL-2026-12207/index.md","name":"MAL-2026-12207","record":{"aliases":["GHSA-prp3-9g6q-wp6v"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On require('sme-auth-core'), index.js loads _init.js which platform-selects a URL and fetches an opaque binary from one of three string-obfuscated Cloudflare Workers hosts (oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev), with a DNS-TXT chunked fallback assembled from tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, win.dl.well1.site. The fetched bytes are written to /var/tmp or %TEMP% under disguised names (.cache_\u003chex\u003e on POSIX, dotnet_diag_\u003chex\u003e.exe on Windows), chmod 0755'd, and spawned detached via /bin/sh -c or cmd.exe with.unref(). Hostnames are concealed via array-join splitting (e.g. ['oob-work','er.cf103','-070.workers.dev'].join('')), the fetch is TTL-gated to run roughly once per 5.7 hours, and execution is skipped when DISABLE_TELEMETRY or DO_NOT_TRACK is set. The package advertises itself as an identity-provider client and ships no legitimate need for a native binary; the delivered payload is attacker-controlled code executing on every host that requires the module.\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 sme-auth-core (npm)","id":"MAL-2026-12207","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":"sme-auth-core","purl":"pkg:npm/sme-auth-core","source":"MAL-2026-12207"}],"products":null,"published":"2026-08-05","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-2026-12207/"}