Path Traversal Vulnerability in Heym File Upload Functionality
CVE-2026-45225

7.2HIGH

Key Information:

Vendor

Heymrun

Status
Vendor
CVE Published:
12 May 2026

What is CVE-2026-45225?

Heym versions prior to 0.0.21 are susceptible to a path traversal vulnerability in their file upload functionality. This issue allows authenticated users to conduct unauthorized file operations by manipulating the filename parameter with traversal sequences. Such exploitation can enable attackers to bypass security constraints, facilitating the reading, writing, or deletion of files outside the intended storage directory, potentially compromising the integrity and confidentiality of the system. Users and administrators should upgrade to Heym version 0.0.21 or later to mitigate this vulnerability.

Affected Version(s)

heym 0

heym 0 < 0.0.21

heym 835843e6d2bf7d018cbb8e50f28f0426eaa20c84

References

CVSS V4

Score:
7.2
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Chia Min Jun Lennon
.