GCVE-110-OSM-2026-4455

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published May 19, 2026

[osmalyze-auto] Malicious package detected. Behaviors: data exfiltration, code execution. [osmalyze-auto] Entrypoint: durabletask/__init__.py (module-import: 24) Exfil: https://check.git-service.com/rope.pyz (custom-c2, recovery: plaintext in durabletask/__init__.py) Payload: durabletask/internal/orchestrator_service_pb2.py Secondary files: durabletask/testing/in_memory_backend.py, durabletask/__init__.py Key findings: - Corporate Environment Targeting in durabletask/internal/orchestrator_service_pb2.py: "tModifiedTo\x18\x03 \x01(\x0b\x32\x1a.google.protobuf.Timestamp\x12\x14\n\x0cinc..." - Corporate Environment Targeting in durabletask/testing/in_memory_backend.py: "tModifiedTo.ToDatetime(timezone.utc): continue ..." - Shell Command Execution in durabletask/__init__.py: "subprocess.Popen(" - Shell Command Execution in durabletask/entities/__init__.py: "subprocess.Popen(" - Shell Command Execution in durabletask/extensions/__init__.py: "subprocess.Popen(" IOCs: - urls: https://check.git-service.com/rope.pyz - payloadFileHash: 2b9886f2882ec868531add189a40ec2bd650cf9b6dedf17181a149291aeed30e

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

9.6/10

Critical · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions	Platforms
unknown	durabletask	1.4.3 (affected)	—

References

Malicious pypi package: durabletask

advisory

vendor

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