Malicious code in yamlformatter-utils (PyPI)
Description
The yamlformatter-utils package version 1.0.0 on PyPI contains malicious code that collects sensitive information during import and exfiltrates it via DNS queries. This behavior classifies it as a malicious package with intent to steal information and credentials. There is no CVSS score available for this threat. No official patch or remediation guidance is provided in the source data.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The yamlformatter-utils PyPI package version 1.0.0 includes embedded malicious code that activates upon import. The code collects sensitive data from the host environment and exfiltrates it using DNS query mechanisms. This campaign, identified as 2026-08-ekx-report-utils, is characterized by targeted attack behavior and generic credential exfiltration techniques. No known exploits in the wild have been reported, and no vendor advisory or patch information is available.
Potential Impact
Sensitive information and credentials may be exfiltrated from systems that import the yamlformatter-utils package version 1.0.0. This can lead to unauthorized data disclosure and potential compromise of affected environments.
Defensive Guidance
No official patch or remediation guidance is currently available. Users should avoid using yamlformatter-utils version 1.0.0 and remove it from their environments if present. Consider verifying package integrity and sourcing dependencies from trusted repositories. Monitor for any updates or advisories from the package maintainers or PyPI.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-14590
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["PyPI"]
Threat ID: 6a91a7c1acd9273b49065315
Added to database: 08/28/2026, 15:22:41 UTC
Last enriched: 09/10/2026, 02:08:39 UTC
Last updated: 10/01/2026, 22:17:32 UTC
Views: 23
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