What’s Vulnerable › Vulnerabilities

CVE-2022-41971: Nextcloud Talk guests can continue to receive video streams from call after being removed from a conversation

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-12-01 · updated 2026-06-17
• Weakness: CWE-200

Description

Nextcould Talk android is a video and audio conferencing app for Nextcloud. Prior to versions 12.2.8, 13.0.10, 14.0.6, and 15.0.0, guests can continue to receive video streams from a call after being removed from a conversation. An attacker would be able to see videos on a call in a public conversation after being removed from that conversation, provided that they were removed while being in the call. Versions 12.2.8, 13.0.10, 14.0.6, and 15.0.0 contain patches for the issue. No known workarounds are available.

Affected products

• Nextcloud Talk: from 12.0.0 before 12.2.8; from 13.0.0 before 13.0.10; from 14.0.0 before 14.0.6 — fixed in 12.2.8, 13.0.10, 14.0.6

How to fix

Upgrade to a fixed version: Nextcloud Talk 12.2.8, 13.0.10, 14.0.6. Check the vendor advisory for mitigations.

References

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wx6w-xpg9-6fv4
• https://github.com/nextcloud/spreed/pull/7974
• https://hackerone.com/reports/1706248
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wx6w-xpg9-6fv4
• https://github.com/nextcloud/spreed/pull/7974
• https://hackerone.com/reports/1706248

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