- cvss
- —
- not scored
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- —
- no score, EPSS covers CVEs only
- public exploits
- 0
- none known
Summary
Part of the "Hades" wave of the Shai-Hulud supply-chain campaign. On 2026-06-08, malicious phantom releases of mflux-streamlit were published to PyPI using stolen credentials. The package executes a bundled JavaScript payload (via the Bun runtime) on import that harvests and exfiltrates credentials and attempts self-propagation. This entry is a summary; behavior may not be fully characterized here. See the linked references for detailed analysis and indicators of compromise.
Is PYSEC-2026-582 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerAffected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | mflux-streamlit | 2 listed versions |
no fix listed |
References
-
inspector.pypi.io
/project/mflux-streamlit/0.0.3/packages/55/aa/ed575e2fa490de397e5d5c017b1093c8439f6718db903f0fc2d5300ae5c9/mfl
evidence
-
inspector.pypi.io
/project/mflux-streamlit/0.0.4/packages/59/7d/442dea3530fbfceaee95cf549bbc668cdba6d317e2ede244a2fd327f79ec/mfl
evidence
-
endorlabs.com
/learn/shai-hulud-hades-wave-hits-six-pypi-bioinformatics-packages
article
-
stepsecurity.io
/blog/the-hades-campaign-pypi-packages
article
Sources
- OSV PYSEC-2026-582
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.