CVE-2022-39346
Missing length validation of user displayname in nextcloud server
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
Nextcloud server is an open source personal cloud server. Affected versions of nextcloud server did not properly limit user display names which could allow a malicious users to overload the backing database and cause a denial of service. It is recommended that the Nextcloud Server is upgraded to 22.2.10, 23.0.7 or 24.0.3. There are no known workarounds for this issue.
Timeline
ID reserved
By GitHub_M
- 3 months later
· 3 months later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Low3.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L |
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.1% · top 34% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.5.
Weakness
Affected products
nextcloud · security-advisories
- affected < 22.2.10
- affected >= 23.0.0, < 23.0.7
- affected >= 24.0.0, < 24.0.3
References (6)
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6w9f-jgjx-4vj6 (opens in a new tab)x_transferred
- https://github.com/nextcloud/server/pull/33052 (opens in a new tab)x_transferred
- https://hackerone.com/reports/1588562 (opens in a new tab)x_transferred
- FEDORA-2022-902df3b060 (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2022-49b20342c0 (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2022-98c1d712b5 (opens in a new tab)vendor-advisoryx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-39346)Record last updated .