{"answers":{"affected":"1 open source package ship an affected version, including bigops-timeline-ui.","exploited":"There is no known exploitation of MAL-2026-12845 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-2026-12845 is a malicious package in bigops-timeline-ui, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12845 is a malicious package: bigops-timeline-ui (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-2026-12845/ (Markdown: https://insights.sbomify.com/MAL-2026-12845/index.md)","id":"MAL-2026-12845","markdown":"https://insights.sbomify.com/MAL-2026-12845/index.md","name":"MAL-2026-12845","record":{"aliases":["GHSA-27r4-hvh7-4hmh"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On require() of bigops-timeline-ui, index.js loads./_adapter.js which fetches a platform-specific binary from Cloudflare Workers hosts whose names are assembled at runtime from split string fragments (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev), with a DNS TXT-record fallback channel under *.dl.wel1.ru that reassembles a base64-encoded binary from numbered subdomain lookups. The fetched bytes are written to a hidden temp file using cover-story names (.cache_\u003chex\u003e on POSIX, dotnet_diag_\u003chex\u003e.exe on Windows), chmod 0755 is applied, and the file is spawned detached via /bin/sh -c or cmd.exe /c start. There is no version pinning, no hash or signature verification, and the destinations are unrelated to any documented publisher for a timeline UI package. Runtime hostname construction and the DNS TXT transport are anti-analysis measures rather than legitimate delivery mechanisms.\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 bigops-timeline-ui (npm)","id":"MAL-2026-12845","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":"bigops-timeline-ui","purl":"pkg:npm/bigops-timeline-ui","source":"MAL-2026-12845"}],"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-2026-12845/"}