CVE-2021-32676 - CVE House
Back to Database
Status published Medium CVE-2021-32676

Session Fixation in Nextcloud Talk

Vulnerability Description

Nextcloud Talk is a fully on-premises audio/video and chat communication service. Password protected shared chats in Talk before version 9.0.10, 10.0.8 and 11.2.2 did not rotate the session cookie after a successful authentication event. It is recommended that the Nextcloud Talk App is upgraded to 9.0.10, 10.0.8 or 11.2.2. No workarounds for this vulnerability are known to exist.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-32676

Credits & Attribution

No credits recorded in the NVD database.

References

More from nextcloud

View All →
CVE-2025-66558
Nextcloud Twofactor WebAuthn app was updated based on public key
Low 3.1
CVE-2025-66557
Nextcloud Deck app allowed user with "Can share" permission to modify permissions of other non-owners
Medium 5.4
CVE-2025-66556
Nextcloud talk allows participants to blindly delete poll drafts of other users by ID
Low 3.5
CVE-2025-66554
Nextcloud Contacts vulnerable to Stored XSS in contacts app via organisation and title field
Low 3.5
CVE-2025-66553
Nextcloud Tables app allowed users to view columns metadata information of any table
Medium 4.3

Affected Vendor

Affected Software

security-advisories
Vulnerable Versions:
< 9.0.10, >= 10.0.0, < 10.0.8, >= 11.0.0, < 11.2.2

Timeline

Official Publish: June 16th, 2021
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weaknesses (CWE)

CWE-384

MITRE ATT&CK TTPs

T1189 Drive-by Compromise
Initial Access
T1078 Valid Accounts
Persistence
T1539 Steal Web Session Cookie
Credential Access