CVE-2026-8736: Oinone Pamirs path traversal in LocalFileClient file upload

CVE-2026-8736 · Severity: medium · CVSS 4.1 · Published 2026-05-17

Oinone Pamirs is a low-code development framework used to build enterprise applications. A security flaw in its file upload component allows an attacker to bypass security controls and save files to unauthorized locations on the server. This could lead to a complete system takeover if an attacker overwrites critical system configuration files or scheduled tasks.

Technologies: Oinone Pamirs. Vendors: Oinone.

Quick answers

Is CVE-2026-8736 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-8736 being exploited in the wild.
How severe is CVE-2026-8736?
Medium severity, with a CVSS score of 4.1, published 17 May 2026.
Which products and versions are affected?
Oinone Pamirs up to 7.2.0.
Is there a fix for CVE-2026-8736?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-8736 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-8736?
Check whether you run Oinone Pamirs at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A path traversal vulnerability exists in the `RestController` component of Oinone Pamirs, specifically within `LocalFileClient.java`. The application processes the `uniqueFileName` parameter via `request.getParameter` without proper sanitization or normalization. By injecting directory traversal sequences (e.g., `../`), an attacker can escape the intended storage directory. Although some metrics suggest physical access, the technical PoC demonstrates a remote network-based POST request to `/file/upload` that bypasses the GraphQL permission gateway. This can be exploited to overwrite sensitive files like `/etc/cron.d/` to achieve remote code execution. No official patch has been confirmed by the vendor.

Affected products

  • Oinone (Zhejiang Shushi Network Technology) Pamirs (AI Low-Code Development Framework) up to 7.2.0

Timeline

  • 2026-04-22: disclosed: Initial public disclosure on GitHub by SourByte05
  • 2026-05-17: advisory: CVE-2026-8736 published via VulDB/NVD

References

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