CVE-2022-39346: fedoraproject fedora Improper Input Validation
Vulnerability summary
CVE-2022-39346 is a medium (CVSS 6.5) Improper Input Validation vulnerability in fedoraproject fedora. EPSS estimates a 1.07% chance of exploitation in the next 30 days, higher than 64.4% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 25-11-2022PublishedVulnerability first disclosed.
- 23-04-2025Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 2 sources · 1 version- CVE.orgCNA3.5LowCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:LDiffers
EPSS trend
Probability
1.07%
Chance of exploitation in the next 30 days
Percentile
64%
Versus all other CVEs
30-day change
+0.04 pp
From 1.04% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.
Affected systems
Nextcloud3 products
- nextcloud_enterprise_server< 22.2.10 | ≥ 23.0.0, < 23.0.7 | ≥ 24.0.0, < 24.0.3
- nextcloud_server< 22.2.10 | ≥ 23.0.0, < 23.0.7 | ≥ 24.0.0, < 24.0.3
- security-advisories< 22.2.10 | ≥ 23.0.0, < 23.0.7 | ≥ 24.0.0, < 24.0.3
Fedoraproject1 product
- fedoraEOL35 | 36 | 37
2 vendors · 4 products
References
6 links- github.com/nextcloud/security-advisories/security/advisories/GHSA-6w9f-jgjx-4vj6Third Party Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory