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OpenAdvisories
High · 8.6 CVE-2022-39264 EUVD-2022-41773

nheko vulnerable to secret poisoning using MITM on secret requests by the homeserver

Published Sep 28, 2022 · Updated Apr 23, 2025 · Assigned by GitHub_M

Description

nheko is a desktop client for the Matrix communication application. All versions below 0.10.2 are vulnerable homeservers inserting malicious secrets, which could lead to man-in-the-middle attacks. Users can upgrade to version 0.10.2 to protect against this issue. As a workaround, one may apply the patch manually, avoid doing verifications of one's own devices, and/or avoid pressing the request button in the settings menu.

Affected products

VendorProductAffectedFixed
Nheko-Reborn nheko < 0.10.2 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 nheko 0.10.2-1 —
Debian 13 nheko 0.10.2-1 —
Debian 12 nheko 0.10.2-1 —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 nheko No fix yet —
Ubuntu 26.04 LTS nheko No fix yet —
Ubuntu 25.10 nheko No fix yet —
Ubuntu 24.04 LTS nheko No fix yet —
Ubuntu 22.04 LTS nheko No fix yet —
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS nheko No fix yet —
Ubuntu 18.04 LTS nheko No fix yet —
ReleasePackageFixed inAdvisory
Alpine v3.16 nheko 0.9.3-r2 —

References