Malicious code in adv2099m3 (PyPI)
Malicious code was discovered in the adv2099m3 package on PyPI. The package was identified and cataloged by the OpenSSF malicious-packages project.
- Disclosed
- Last updated
- Blast radius
- Unknown; depends on adoption of adv2099m3 package
- Ecosystems
- Attack vectors
- Affected entities
- adv2099m3PyPI package containing malicious code
The adv2099m3 package on PyPI was found to contain malicious code. This incident was identified and documented by the OpenSSF's malicious-packages project, which maintains a catalog of known malicious packages across package ecosystems.\n\nThe package was published on PyPI and made available to Python developers. The malicious nature of the package was detected and reported, leading to its identification in the OpenSSF advisory database (MAL-2024-4736).\n\nThis is a straightforward case of a malicious package being published to a public package repository, representing a direct supply chain compromise vector.
Indicators of compromise
- Packages
- adv2099m3
Remediation
- Remove adv2099m3 from any environments where it may have been installed
- Audit project dependencies to identify if adv2099m3 was ever added as a dependency
- Review any systems that may have executed code from adv2099m3 for signs of compromise
- Use dependency scanning tools to detect presence of adv2099m3 in supply chains
Sources
- GitHub Advisory GHSA-j4jj-r6wr-hmp9 · GitHub Advisory Database
Cite this entry
"Malicious code in adv2099m3 (PyPI)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 21, 2026; last updated July 21, 2026. https://supplychainattack.org/incident/malicious-code-in-adv2099m3-pypi-1bi7ev
Suggest a correction
Found an error or have a newer source? Corrections to factual errors take priority over new entries.
Related incidents
- resolvedcritical
Malicious code in afrit-name (PyPI)
Malicious code was discovered in the afrit-name package on PyPI. The incident was identified and documented by the OpenSSF malicious packages project.
PyPICompromised package - resolvedcritical
Malicious code in adv2099m7 (PyPI)
Malicious code was discovered in the adv2099m7 package on PyPI. The package was identified and cataloged by the OpenSSF malicious packages project.
PyPICompromised package - resolvedcritical
Malicious code in adrandom (PyPI)
The adrandom package on PyPI contained malicious code that executed spyware and information-stealing malware. It was part of a campaign by the EsqueleSquad group that published nearly 6,000 malicious packages across PyPI and NPM.
EsquelesquadPyPICompromised package - resolvedcritical
Malicious code in ziphash (PyPI)
The ziphash package on PyPI contained malicious code that downloads and executes multi-stage malware during archive-support class initialization. The malware exhibits obfuscation and remote code execution capabilities, classified as part of the 2025-11-uzip campaign.
2025 11 UzipPyPICompromised package