Arbitrary file write via unnormalized upload path
Published May 17, 2026 · Updated May 17, 2026
Path traversal in Oinone Pamirs 7.0 through 7.2.0 allows physically proximate attackers to write arbitrary files through /file/upload. LocalFileClient.java reads the uniqueFileName request parameter and concatenates it into the physical storage path without filtering or normalizing ../ sequences, so operating-system path resolution escapes the upload directory. Exploitation requires low privileges and filesystem write permission for the target; code execution follows only when the service can write an executable sink such as Linux cron.d.
Summary
What happened
Path traversal in Oinone Pamirs 7.0 through 7.2.0 allows physically proximate attackers to write arbitrary files through /file/upload. LocalFileClient.java reads the uniqueFileName request parameter and concatenates it into the physical storage path without filtering or normalizing ../ sequences, so operating-system path resolution escapes the upload directory. Exploitation requires low privileges and filesystem write permission for the target; code execution follows only when the service can write an executable sink such as Linux cron.d.
The record
- CVE
- CVE-2026-8736
- Published
- May 17, 2026
- Updated
- May 17, 2026
- Vendor
- Oinone
- Product
- Pamirs
- Classifications
- CWE-22, T1053.003
- Attack vector
- physical
- Privileges
- authenticated
Timeline
How it unfolded
- May 17, 2026CVE publishedPublication date reported by the CVE source.
- May 17, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=7.0
- Affected versionversion=7.1
- Affected versionversion=7.2.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Oinone /file/upload traversal proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo