{"answers":{"affected":"1 open source package ship an affected version, including @resolvx/core.","exploited":"There is no known exploitation of MAL-2026-5798 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-2026-5798 is a malicious package in @resolvx/core, published on 15 Jun 2026."},"fix_prompt":"MAL-2026-5798 is a malicious package: @resolvx/core (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-2026-5798/ (Markdown: https://insights.sbomify.com/MAL-2026-5798/index.md)","id":"MAL-2026-5798","markdown":"https://insights.sbomify.com/MAL-2026-5798/index.md","name":"MAL-2026-5798","record":{"aliases":["GHSA-5fvj-272r-496w"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On `npm install`, scripts/postinstall.js connects to a hardcoded attacker IP (http://213.218.160.189:8080, fallback:80), sends a base64-encoded host fingerprint (hostname, username, platform, arch) as the `q` query parameter, optionally XOR-decrypts the HTTP response with an embedded hex key, writes the decrypted bytes to a hidden file (`.node_\u003crand\u003e.js`) under /tmp or %LOCALAPPDATA%/Temp, spawns it as a detached Node process with stdio ignored and windowsHide set, calls unref(), and deletes the staging file ~5 seconds later. The script also performs anti-analysis checks (scans `tasklist` for wireshark/fiddler/procmon/x64dbg/ida), introduces a randomized 0.5–2.5s start delay, and skips execution when `npm_config_dry_run` is set to evade dry-run inspection. The combination of plaintext HTTP fetch from a bare IP, payload decryption, hidden filename staging, detached background execution, and anti-analysis gating is a textbook install-time dropper that yields full code execution on the installer's machine and exfiltrates host identification to the attacker for follow-on targeting.\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 @resolvx/core (npm)","id":"MAL-2026-5798","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":"@resolvx/core","purl":"pkg:npm/%40resolvx/core","source":"MAL-2026-5798"}],"products":null,"published":"2026-06-15","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-2026-5798/"}