CVE-2026-33645
Fireshare facilitates self-hosted media and link sharing.
Published Mar 26, 2026 · updated Jun 17, 2026 · shaneisrael fireshare
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 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 ), violating integrity and potentially enabling follow-on attacks depending on deployment. Version 1.5.2 fixes the issue.
Code
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Timeline
Detection, updates, and resolution for this record.
Mar 26, 2026 · NIST NVD
Detected
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 multipart field is used directly in filesystem path construction without sanitization or containment checks. This enables unauthorized file writes to at
Jun 17, 2026 · NIST NVD
Updated
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 multipart field is used directly in filesystem path construction without sanitization or containment checks. This enables unauthorized file writes to at
Affected
- cpe shaneisrael/fireshare1.5.1
Sources
- CVE.orgVulnerability recordCVE-2026-33645
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-33645
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 multipart field is us
nvd.nist.gov