GCVE-110-OSM-2026-12388

Advisory PublishedCVSS 8.8/10

Vulnetix · Advisory published May 5, 2026

PolinRider malware was merged into Skyconnect-Inc/plane across 7 postcss.config.js files (monorepo) and subsequently removed via two maintainer security-fix PRs (self-remediated). === CONFIRMED UPSTREAM INFECTION - HISTORICAL, SELF-REMEDIATED === Repo: Skyconnect-Inc/plane Infected files: apps/admin/postcss.config.js, apps/space/postcss.config.js, apps/web/postcss.config.js, packages/editor/postcss.config.js, packages/propel/postcss.config.js, packages/tailwind-config/postcss.config.js, packages/ui/postcss.config.js Evidence: merged PR #1 "security: remove Lazarus PostCSS payload (incident 2026-05-05)" and PR #2 "security: remove Lazarus PostCSS payload from main (incident 2026-05-05)" - community's own fix commits confirming prior infection across the entire monorepo.

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

8.8/10

High · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions	Platforms
unknown		all (affected)	—

References

Malicious repository: https://github.com/Skyconnect-Inc/plane

advisory

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