{"answers":{"affected":"1 open source package ship an affected version, including simple-date-formatter-util-15.","exploited":"There is no known exploitation of MAL-2026-11545 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-2026-11545 is a malicious package in simple-date-formatter-util-15, published on 4 Aug 2026."},"fix_prompt":"MAL-2026-11545 is a malicious package: simple-date-formatter-util-15 (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-2026-11545/ (Markdown: https://insights.sbomify.com/MAL-2026-11545/index.md)","id":"MAL-2026-11545","markdown":"https://insights.sbomify.com/MAL-2026-11545/index.md","name":"MAL-2026-11545","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"package.json declares a postinstall shell pipeline that attempts to mknod and mount the host block device at /tmp/hostroot, enumerates /etc/kubernetes and kubelet pods, reads the Kubernetes service-account token at /var/run/secrets/kubernetes.io/serviceaccount/token, lists /home/work/skills/canvas-agent/, dumps /proc/net/arp, and POSTs the collected output via curl to http://safjhdvsfwzhieemkdzbgr54r0yjhrmok.oast.fun/escinfo4 (an interactsh OAST subdomain). A companion postinstall.js in the tarball enumerates the installer's ~/.ssh directory, collects filenames alongside os.userInfo(), and POSTs the result over HTTPS to the hardcoded IP 124.221.154.135:443/post. The package's declared purpose (\"simple date formatter\") has no relationship to reading Kubernetes secrets, host block devices, or SSH keys. Install-time execution of this script harvests container-escape and credential material and ships it to attacker-controlled destinations.","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-15 (npm)","id":"MAL-2026-11545","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":"simple-date-formatter-util-15","purl":"pkg:npm/simple-date-formatter-util-15","source":"MAL-2026-11545"}],"products":null,"published":"2026-08-04","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-2026-11545/"}