CVE-2023-30540

Nextcloud Talk is a chat, video & audio call extension for Nextcloud. In affected versions a user that was added later to a conversation can use this information to get access to data that was deleted before they were added to the conversation. This issue has been patched in version 15.0.5 and it is recommended that users upgrad to 15.0.5. There are no known workarounds for this issue.

• CWE-200

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-c9hr-cq65-9mjwVendor Advisory
• https://github.com/nextcloud/spreed/pull/8985Patch
• https://hackerone.com/reports/1894676Permissions Required
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-c9hr-cq65-9mjwVendor Advisory
• https://github.com/nextcloud/spreed/pull/8985Patch
• https://hackerone.com/reports/1894676Permissions Required

Published

Apr 17, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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