Security Flaw in aeon Library Affects Python Users
CVE-2026-65820

8.7HIGH

Key Information:

Status
Vendor
CVE Published:
11 November 2026

What is CVE-2026-65820?

The aeon library, designed for time series analysis in Python, had a vulnerability affecting its GitHub Actions workflow prior to version 1.5.0. The workflow utilized the pull_request_target event, allowing forked code to run in a privileged environment. This configuration could lead to the execution of malicious code, leveraging elevated credentials and potentially enabling an attacker to push harmful changes back to the original repository. This risk underlines the importance of security in CI/CD environments, and a patch has been implemented in version 1.5.0 to mitigate these concerns.

Affected Version(s)

aeon < 1.5.0

References

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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