MAL-2026-5414

    Dashboard / Malicious Package / MAL-2026-5414

    MAL-2026-5414

    Published: 9 Jun 2026Last Modified: 9 Jun 2026

    Summary: Malicious code in @klapp-login-platform/oidc (npm)

    Details: Source: amazon-inspector (6c2b86b9675d4d22e101f4f10f521cc36069ecebd1680d4c3ecfa0c04e8169da) On `npm install`, the package executes `node index.js` via its preinstall hook. index.js collects the installer's hostname (`os.hostname()`), username (`os.userInfo().username`), package directory (`__dirname`), and current working directory (`process.cwd()`), serializes them to JSON, hex-encodes the payload, and exfiltrates it through two channels: (1) a DNS resolution of a subdomain under `d8jbmnsqcfu78dfs8vdg34ohqhirb4pbg.oast.live` (interactsh-style out-of-band exfiltration), and (2) an HTTP POST to the bare IP `172.201.213.59:9090/c`. The package ships no documented functionality matching its `@klapp-login-platform/oidc` name; the description is 'security research'. The high version number (99.0.2) under an org-style scope on the public registry is consistent with a dependency-confusion attack designed to pre-empt resolution of an internal private package of the same name, and the beaconing payload provides the attacker with confirmation of which organizations have resolved the public version.

    Affected packages

    Package

    Name: @klapp-login-platform/oidc

    Purl: pkg:npm/%40klapp-login-platform%2Foidc

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    99.0.2
    99.0.0
    MAL-2026-5414 | CVE-DB