CVE-2022-41926: Nextcloud Talk Android broadcast incorrect permission handling

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-11-25 · updated 2026-06-17
Weakness: CWE-200

Description

Nextcould talk android is the android OS implementation of the nextcloud talk chat system. In affected versions the receiver is not protected by broadcastPermission allowing malicious apps to monitor communication. It is recommended that the Nextcloud Talk Android is upgraded to 14.1.0. There are no known workarounds for this issue.

Affected products

Nextcloud Talk: before 14.1.0 — fixed in 14.1.0

How to fix

Upgrade to a fixed version: Nextcloud Talk 14.1.0. Check the vendor advisory for mitigations.

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-564v-3rfc-352m
https://github.com/nextcloud/talk-android/pull/2148
https://hackerone.com/reports/1596459
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-564v-3rfc-352m
https://github.com/nextcloud/talk-android/pull/2148
https://hackerone.com/reports/1596459

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