{"answers":{"affected":"1 open source package ship an affected version, including glyphmatrix-fixture.","exploited":"There is no known exploitation of MAL-2026-18355 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-2026-18355 is a malicious package in glyphmatrix-fixture, published on 28 Oct 2026."},"fix_prompt":"MAL-2026-18355 is a malicious package: glyphmatrix-fixture (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-2026-18355/ (Markdown: https://insights.sbomify.com/MAL-2026-18355/index.md)","id":"MAL-2026-18355","markdown":"https://insights.sbomify.com/MAL-2026-18355/index.md","name":"MAL-2026-18355","record":{"aliases":["GHSA-vc33-3x34-x6jm"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Package glyphmatrix-fixture@1.0.1 contains two files. No install-time lifecycle hooks, no network callouts, no credential or environment reads, no filesystem persistence outside the package directory, and no obfuscated or dynamically executed payloads were observed. No a static rule matched and no behavioral indicators of exfiltration, dropper activity, silent relay, or backdoor functionality are present.\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 glyphmatrix-fixture (npm)","id":"MAL-2026-18355","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":"glyphmatrix-fixture","purl":"pkg:npm/glyphmatrix-fixture","source":"MAL-2026-18355"}],"products":null,"published":"2026-10-28","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-2026-18355/"}