CVE-2022-29243

Name: CVE-2022-29243
Creator: NVD / NIST
Published: 2022-05-31T17:15:07.753+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 1.43%

Last modified Jun 17, 2026

CVE-2022-29243 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 22.2.7 and 23.0.4, missing input-size validation of new session names allows users to create app passwords with long names. EPSS estimates a 1.43% chance of exploitation in the next 30 days.

Description

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 22.2.7 and 23.0.4, missing input-size validation of new session names allows users to create app passwords with long names. These long names are then loaded into memory on usage, resulting in impacted performance. Versions 22.2.7 and 23.0.4 contain a fix for this issue. There are currently no known workarounds available.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

1.43%

69.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nextcloud	Nextcloud Server	< 22.2.7
Nextcloud	Nextcloud Server	> 23.0.0, < 23.0.4

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7cwm-qph5-4h5wThird Party Advisory
https://github.com/nextcloud/server/pull/31658Patch, Third Party Advisory
https://hackerone.com/reports/1153138Third Party Advisory
https://security.gentoo.org/glsa/202208-17Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7cwm-qph5-4h5wThird Party Advisory
https://github.com/nextcloud/server/pull/31658Patch, Third Party Advisory
https://hackerone.com/reports/1153138Third Party Advisory
https://security.gentoo.org/glsa/202208-17Third Party Advisory

Timeline

Published: May 31, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-29243?

How severe is CVE-2022-29243?

CVE-2022-29243 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 1.43% probability of exploitation in the next 30 days.

How do I fix CVE-2022-29243?

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-2022-29243?

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

Scan your code now

Source: NVD / NIST