{"answers":{"affected":"1 open source package ship an affected version, including delivery-ci-documentation.","exploited":"There is no known exploitation of MAL-2026-13541 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-2026-13541 is a malicious package in delivery-ci-documentation, published on 7 Aug 2026."},"fix_prompt":"MAL-2026-13541 is a malicious package: delivery-ci-documentation (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-2026-13541/ (Markdown: https://insights.sbomify.com/MAL-2026-13541/index.md)","id":"MAL-2026-13541","markdown":"https://insights.sbomify.com/MAL-2026-13541/index.md","name":"MAL-2026-13541","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On require('delivery-ci-documentation'), index.js loads _init.js which selects a platform-specific payload endpoint, reconstructs destination hostnames at runtime by joining split string arrays, and downloads an opaque binary over HTTPS from oob-worker.cf10x-*.workers.dev hosts. When HTTPS retrieval fails, it falls back to a DNS TXT covert channel that reassembles a base64-encoded payload from numbered subdomains under *.dl.wel1.ru. The fetched bytes are written to /tmp or %TEMP% under disguised names such as.cache_\u003chex\u003e and dotnet_diag_\u003chex\u003e.exe, chmod 0755 on POSIX, and spawned detached via /bin/sh -c '\u003cpath\u003e \u0026' or cmd.exe /c start /b. No hash or signature verification is performed, the URLs are mutable, the destination hosts do not match any legitimate publisher for a package advertised as a documentation abstraction, and both the staging paths and the transport are covert. The result is arbitrary attacker-controlled code execution on the installer's host on import.","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 delivery-ci-documentation (npm)","id":"MAL-2026-13541","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":"delivery-ci-documentation","purl":"pkg:npm/delivery-ci-documentation","source":"MAL-2026-13541"}],"products":null,"published":"2026-08-07","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-2026-13541/"}