PYSEC-2026-434

    Dashboard / Vulnerabilities / PYSEC-2026-434

    PYSEC-2026-434

    Published: 29 Jun 2026Last Modified: 1 Jul 2026

    Summary: Remote unauthenticated attackers able to upload files in Onionshare

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

    References: https://nvd.nist.gov/vuln/detail/CVE-2021-41868, https://github.com/onionshare/onionshare/issues/1396, https://github.com/onionshare/onionshare/pull/1404, https://github.com/onionshare/onionshare, https://www.ihteam.net/advisory/onionshare, https://pypi.org/project/onionshare-cli, https://github.com/advisories/GHSA-7g47-xxff-9p85

    Affected packages

    Package

    Name: onionshare-cli

    Purl: pkg:pypi/onionshare-cli

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 2.3
    Fixed -2.4

    Affected versions

    2.3
    2.3.1
    2.3.2
    2.3.3

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    PYSEC-2026-434 | CVE-DB