CVE-2021-32676 json
Session Fixation in Nextcloud Talk
published 2021-06-16 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-19485
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 61%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- nextcloud talk 9.0.10, 10.0.8, 11.2.2
Exploit prediction
0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
Affected products
- nextcloud security-advisories
Classification
- Weakness
-
- CWE-384 Session Fixation
References
-
github.com
/nextcloud/security-advisories/security/advisories/GHSA-p6h7-84v4-827r
third-party-advisory
-
hackerone.com
/reports/1181962
issue-tracking, third-party-advisory
Sources
- CVE List CVE-2021-32676
- NVD CVE-2021-32676
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