CVE-2021-32676

Name: CVE-2021-32676
Creator: NVD / NIST
Published: 2021-06-16T00:15:07.793+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.95%

Last modified Jun 17, 2026

CVE-2021-32676 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.95% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.95%

56.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-384

Affected Software

Vendor	Product	Versions
Nextcloud	Talk	< 9.0.10
Nextcloud	Talk	>= 10.0.0, < 10.0.8
Nextcloud	Talk	>= 11.2.0, < 11.2.2

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-p6h7-84v4-827rThird Party Advisory
https://hackerone.com/reports/1181962Issue Tracking, Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-p6h7-84v4-827rThird Party Advisory
https://hackerone.com/reports/1181962Issue Tracking, Third Party Advisory

Timeline

Published: Jun 16, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32676?

How severe is CVE-2021-32676?

CVE-2021-32676 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.95% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32676?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-32676?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST