MAL-2026-13501 Malicious code in delivery-ci-jira-rnd (npm)
Malicious package
Published
MAL-2026-13501 is a malicious package: delivery-ci-jira-rnd (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-13501/ (Markdown: https://insights.sbomify.com/MAL-2026-13501/index.md)
- Package
- delivery-ci-jira-rnd
- Registry
- npm
What is MAL-2026-13501?
MAL-2026-13501 is a malicious package in delivery-ci-jira-rnd, published on 7 Aug 2026.
Official description
On require of the package, index.js loads bridge.js which selects a platform-specific endpoint and downloads a binary over HTTPS from Cloudflare Workers hosts assembled from split string literals (e.g. "oob-worker"+".cf102-baf.workers."+"dev" and similar cf101/cf103 variants), with a DNS-TXT covert-channel fallback that reassembles a base64 payload from numbered subdomains under sdk.dl.wel1.ru. The downloaded bytes are written to a hidden masquerading path in /tmp or %TEMP% (".cache<hex>" or "dotnet_diag_<hex>.exe"), chmod 0755, and spawned detached via /bin/sh -c or cmd.exe. Execution is gated by a TTL stamp file and labelled as telemetry. The hostname obfuscation and DNS-TXT fallback channel are consistent with intentional evasion of static string scanning.
What should I do about MAL-2026-13501?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.