chain-guardian

{"modified":"2026-07-13T09:21:39Z","published":"2026-07-13T09:21:39Z","schema_version":"1.7.4","id":"MAL-2026-10433","summary":"Malicious code in chain-guardian (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (1c281292766d55cda3ff1b006154150aa05d567a4f8115534788ffbbc014f3e7)\nchain-guardian presents itself as a mocha gas reporter (typosquatting eth-gas-reporter) but its main entry index.js contains an always-true gate (`var opt = 1; if (!opt) {... } else {... }`) that forces construction of the reporter to invoke utils.connectNet. connectNet resolves lib/syncResolve.js and spawns it via `spawn('node', [u_src], { detached: true, stdio: ['ignore'] })` followed by `progs.unref()`, so the child continues running after mocha exits with its output suppressed. lib/syncResolve.js fetches http://check-server-state.vercel.app/server/v2 over plaintext HTTP and, on a 404 response whose body carries a `token` field, passes that field to `new Function('require', error.response.data.token)` and invokes the resulting function with the real `require`, giving the remote host arbitrary code execution in the developer or CI Node process. A duplicate benign `Gas` reporter function is defined but never exported, serving as cover for the dropper path.\n","affected":[{"package":{"ecosystem":"npm","name":"chain-guardian"},"versions":["1.1.0"],"database_specific":{"cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}],"indicators":{"evidence_files":[{"path":"lib/syncResolve.js","sha256":"95637f53aade70cdffc21c7fcaf2e150a1d523862dbfebc99f82992abc22da20","tlsh":"1b1114e82c9532690771a7f9e7034416f566a4331510c1953f9d41c31f3584892a3fdd"},{"path":"index.js","sha256":"db6f048ab50bdad5c12883185a63f731a1ff1f9d98055ea63e34e9d28137415f","tlsh":"b3f1fe322eb7153745e3faac9bcba061d12696372201cfad7a8c93104f5447894efbe4"},{"path":"lib/utils.js","sha256":"c72c5b5ee9484f977d1d31f953b7df86f4f39f28ffba442c5d0091afac8f04a1","tlsh":"c90231961cf760d3112a35e8ab1b6011e568b65b3208daf5bead53443f0633cd0e7ae9"}],"package_integrity":[{"filename":"chain-guardian-1.1.0.tgz","hashes":{"sha1":"4ecce034a442353ce169d5b613969442d7172d73","sha512_sri":"sha512-cHzxQfl+CwLrL27+owL1d6fC83eQp+2pNZufnAH5azqybQplHPn5INX3iMY9fWn7qefvUQEwU1wuTodh/GVCvg=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/chain-guardian/v/1.1.0"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-010201","import_time":"2026-07-13T10:37:37.263356127Z","modified_time":"2026-07-13T09:21:39Z","sha256":"1c281292766d55cda3ff1b006154150aa05d567a4f8115534788ffbbc014f3e7","source":"amazon-inspector","versions":["1.1.0"]}]}}