CVE-2026-54337 — CRITICAL (9.8)

Vulnerability Description

Fireshare facilitates self-hosted media and link sharing. Prior to version 1.6.14, an argument Injection in the video upload function allows unauthenticated attacker to write/overwrite system files. Version 1.6.14 fixes the issue.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-88

References

https://github.com/ShaneIsrael/fireshare/security/advisories/GHSA-hmh2-6g84-q8jx

FAQ

What is CVE-2026-54337?

CVE-2026-54337 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Fireshare facilitates self-hosted media and link sharing. Prior to version 1.6.14, an argument Injection in the video upload function allows unauthenticated attacker to write/overwrite system files. V...

How severe is CVE-2026-54337?

CVE-2026-54337 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-54337?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.