{"answers":{"affected":"1 open source package ship an affected version, including boxy-fixture-allure.","exploited":"There is no known exploitation of MAL-2026-12342 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-2026-12342 is a malicious package in boxy-fixture-allure, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12342 is a malicious package: boxy-fixture-allure (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-2026-12342/ (Markdown: https://insights.sbomify.com/MAL-2026-12342/index.md)","id":"MAL-2026-12342","markdown":"https://insights.sbomify.com/MAL-2026-12342/index.md","name":"MAL-2026-12342","record":{"aliases":["GHSA-cq8x-34cv-8xxm"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"boxy-fixture-allure ships an index.js that unconditionally requires./_shim on load. _shim.js reconstructs C2 hostnames via runtime string-splitting/.join() over fragments (assembling *.workers.dev CDN endpoints and a DNS TXT-record fallback under *.well1.site), fetches a platform-specific native binary, writes it to /var/tmp/.cache_\u003chex\u003e on Unix or %TEMP%\\dotnet_diag_\u003chex\u003e.exe on Windows, chmods it 0o755, and spawns it detached via /bin/sh -c or cmd.exe /c start /b. Payload naming (dotnet_diag,.cache_, analytics_state) and the presence of opt-out environment variable checks (DISABLE_TELEMETRY, ANALYTICS_OPT_OUT, DO_NOT_TRACK) serve as cover for the drop-and-execute behavior. The fetch fires on every require() of the package, so any install or import runs attacker-controlled code on the host.\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 boxy-fixture-allure (npm)","id":"MAL-2026-12342","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":"boxy-fixture-allure","purl":"pkg:npm/boxy-fixture-allure","source":"MAL-2026-12342"}],"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-2026-12342/"}