🛡️ CVE-2024-22403 — nextcloud-server

🟢 CVSS 3.0 — Low ✅ No Known Exploit CWE-613 NVD
3.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Nextcloud server is a self hosted personal cloud system. In affected versions OAuth codes did not expire. When an attacker would get access to an authorization code they could authenticate at any time using the code. As of version 28.0.0 OAuth codes are invalidated after 10 minutes and will no longer be authenticated. To exploit this vulnerability an attacker would need to intercept an OAuth code from a user session. It is recommended that the Nextcloud Server is upgraded to 28.0.0. There are no known workarounds for this vulnerability.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs low-level privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity none, availability none.

Weakness class

CVE-2024-22403 is classified as CWE-613: Insufficient Session Expiration. Sessions stay valid longer than they should, so an old identifier still grants access.

Affected software

CVE-2024-22403 is recorded against 1 package.

  • nextcloud-server (fixed in 28.0.0)

Timeline and source

Published on 18 January 2024 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com
hackerone.com
lists.fedoraproject.org
github.com
github.com
hackerone.com
lists.fedoraproject.org

Details

Severity LOW
CVSS Score 3.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N
CWE CWE-613
Public Exploit ✅ No
Source NVD
Published 2024-01-18
Updated 2026-08-11
Modified 2026-06-17

Affected Packages

Software From version Fixed in
nextcloud-server 28.0.0

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