CVE-2026-33645 (GCVE-0-2026-33645)
Vulnerability from cvelistv5
Published
2026-03-26 20:58
Modified
2026-03-27 20:01
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-73 - External Control of File Name or Path
Summary
Fireshare facilitates self-hosted media and link sharing. In version 1.5.1, an authenticated path traversal vulnerability in Fireshare’s chunked upload endpoint allows an attacker to write arbitrary files outside the intended upload directory. The `checkSum` multipart field is used directly in filesystem path construction without sanitization or containment checks. This enables unauthorized file writes to attacker-chosen paths writable by the Fireshare process (e.g., container `/tmp`), violating integrity and potentially enabling follow-on attacks depending on deployment. Version 1.5.2 fixes the issue.
Impacted products
Vendor Product Version
ShaneIsrael fireshare Version: = 1.5.2
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Show details on NVD website


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