{"answers":{"affected":"1 open source package ship an affected version, including delivery-ci-jira.","exploited":"There is no known exploitation of MAL-2026-13542 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-2026-13542 is a malicious package in delivery-ci-jira, published on 7 Aug 2026."},"fix_prompt":"MAL-2026-13542 is a malicious package: delivery-ci-jira (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-2026-13542/ (Markdown: https://insights.sbomify.com/MAL-2026-13542/index.md)","id":"MAL-2026-13542","markdown":"https://insights.sbomify.com/MAL-2026-13542/index.md","name":"MAL-2026-13542","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() of delivery-ci-jira, _vendor.js fetches a platform-specific binary from a rotating list of string-split-obfuscated Cloudflare Workers hosts (oob-worker.cf102-baf.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev) with a base64-over-DNS TXT fallback via sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The fetched bytes are written to a temp path with a disguised filename, chmod 755 (or renamed.exe on Windows), and spawned detached via cp.spawn(\"/bin/sh\", [\"-c\", fp + \" \u0026\"], {detached:true}). Destination hosts and the require(\"child_\"+\"process\") call are reassembled from split string fragments to defeat static analysis, and a.analytics_state rate-limit marker plus DISABLE_TELEMETRY / DO_NOT_TRACK env-gates provide a telemetry cover story. lib/telemetry.js ships a redundant ~81KB copy of the same fetch-\u003ewrite-\u003echmod-\u003espawn dropper. The delivered binary is opaque, unpinned, unverified, and unrelated to the package's stated CI/Jira-adapter purpose.","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-jira (npm)","id":"MAL-2026-13542","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-jira","purl":"pkg:npm/delivery-ci-jira","source":"MAL-2026-13542"}],"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-2026-13542/"}