lightning PyPI Compromise: A Bun-Based Credential Stealer in Python
2026-05-11T08:52:07Z•ab3c05861872833aa1bc39fd7269419d40a6454a869527165ef29cd0c42e2e30
buncloud-credentialscredential-stealercve-2026-40478github-actionsnpmpackage-compromisepypiremediationsapsnyk-advisorysupply-chaintemplate-injectionthymeleaf
What happened
Multiple Snyk blog advisories describe active supply-chain attacks and a high-severity template-injection flaw. Malicious PyPI releases (notably "lightning" and a compromised elementary-data v0.23.3) include Bun-based credential-stealers/backdoors that run on import and target dbt profiles, cloud provider keys, SSH secrets; attackers used a GitHub Actions script-injection to publish elementary-data. A related Bun-based stealer campaign dubbed “Mini Shai-Hulud” compromised several npm/SAP ecosystem packages (cap-js, mbt, etc.). Separately, Thymeleaf has a template-injection vulnerability (CVE-
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- snyk_blog
- Record identifier
- ab3c05861872833aa1bc39fd7269419d40a6454a869527165ef29cd0c42e2e30
- Enrichment time
- 2026-05-11T08:52:07Z
- AI-assisted enrichment
- Yes
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