🛡️ PYSEC-2026-605 — nucbox

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Malicious code in nucbox (PyPI)

Part of the "Hades" wave of the Shai-Hulud supply-chain campaign. On 2026-06-08,

malicious phantom releases of nucbox 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.

Affected software

PYSEC-2026-605 is recorded against 1 package.

  • nucbox

Timeline and source

Published on 1 July 2026 and last revised on 2 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

inspector.pypi.io (Evidence)
www.endorlabs.com (Article)
www.stepsecurity.io (Article)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-07-01
Updated 2026-08-12
Modified 2026-07-02
Fix URL N/A

Affected Packages

Software From version Fixed in
nucbox — —

Similar Threats

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