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CRITICAL

CVE-2021-41868

CVSS v3

9.8

CRITICAL

EPSS Score

2.4 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

OnionShare 2.3 before 2.4 allows remote unauthenticated attackers to upload files on a non-public node when using the --receive functionality.

Technical details

Published
2021-10-04

Frequently asked questions

What is CVE-2021-41868?

OnionShare 2.3 before 2.4 allows remote unauthenticated attackers to upload files on a non-public node when using the --receive functionality.

Is CVE-2021-41868 actively exploited?

Active exploitation of CVE-2021-41868 has not been confirmed. Its EPSS score was 2.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-41868?

CVE-2021-41868 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2021-41868 affecting your environment?

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