CVE-2026-65820
aeon: Privileged GitHub Actions workflow allowed fork-controlled code execution
aeon is a scikit-learn compatible Python library for learning from time series. Prior to version 1.5.0, a GitHub Actions workflow used pull_request_target for pre-commit checks on pull requests from forks. In this configuration, fork-controlled code could be checked out and executed in a privileged context. The vulnerable workflow also generated/used elevated credentials and could automatically commit or push fixes back to pull request branches. This created a potential token exposure and repository write path if an attacker submitted a malicious fork pull request designed to execute during the privileged workflow run. This issue has been patched in version 1.5.0.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| aeon aeon-toolkit |
< 1.5.0 (affected) | CNA: GitHub_M |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.7 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N | CNA: GitHub_M |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/aeon-toolkit/aeon/security/advisories/GHSA-mhg2-mc45-wrjrCNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/aeon-toolkit/aeon/pull/3394CNA: GitHub_M · x_refsource_MISC
- https://github.com/aeon-toolkit/aeon/commit/99261e1355c89a316bf0824bb03f855c6aadae8fCNA: GitHub_M · x_refsource_MISC
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