CVE-2026-34745

published 2026-04-02

CVE-2026-34745: Fireshare facilitates self-hosted media and link sharing. Prior to version 1.5.3, the fix for CVE-2026-33645 was applied to the authenticated…

Priority P2 65 critical 9.1 CVSS 3.1

AV N AC L PR N UI N S U C N I H A H

Fireshare facilitates self-hosted media and link sharing. Prior to version 1.5.3, the fix for CVE-2026-33645 was applied to the authenticated /api/uploadChunked endpoint but was not applied to the unauthenticated /api/uploadChunked/public endpoint in the same file (app/server/fireshare/api.py). An unauthenticated attacker can exploit the checkSum parameter to write arbitrary files with attacker-controlled content to any writable path on the server filesystem. This issue has been patched in version 1.5.3.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
shaneisrael	fireshare	< 1.5.3	1.5.3

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