{"answers":{"affected":"1 open source package ship an affected version, including chai-leaf.","exploited":"There is no known exploitation of MAL-2026-10940 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-2026-10940 is a malicious package in chai-leaf, published on 21 Jul 2026."},"fix_prompt":"MAL-2026-10940 is a malicious package: chai-leaf (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-2026-10940/ (Markdown: https://insights.sbomify.com/MAL-2026-10940/index.md)","id":"MAL-2026-10940","markdown":"https://insights.sbomify.com/MAL-2026-10940/index.md","name":"MAL-2026-10940","record":{"aliases":["GHSA-m3c7-2j38-rjh7"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"chai-leaf@1.4.5's main entry index.js unconditionally requires./lib/config, which is a single 3,546,568-byte obfuscator.io-encoded file (20,721-entry string array with self-defending routines) that runs immediately on require(). The decoded string table inside lib/config.js contains literals for.ssh and.aws (installer credential directories) alongside axios, spawn, exec, Function, and require — the shape of a load-time credential stealer that reads secrets from the installer's home directory and exfiltrates via HTTP. package.json declares axios as a runtime dependency. The package presents itself with inconsistent cover stories: package.json describes it as vulnerability-management documentation while the README impersonates pino (badges, prose, and docs/api.md copied verbatim from pinojs/pino) and the lib/ tree mirrors pino's file names (proto.js, redaction.js, tools.js, transport.js, worker.js) with the extra obfuscated config.js that has no analog in real pino. The package name and README also allude to chai, unrelated to either declared purpose. A logger/chai plugin has no legitimate need for a multi-megabyte self-defending obfuscated blob that executes at import, and no legitimate need to reference ~/.ssh and ~/.aws.\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 chai-leaf (npm)","id":"MAL-2026-10940","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":"chai-leaf","purl":"pkg:npm/chai-leaf","source":"MAL-2026-10940"}],"products":null,"published":"2026-07-21","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-2026-10940/"}