Medium 4.4Published Jun 1, 2026

CVE-2026-45279Nextcloud: Limited path traversal via template API if using `{lang}` in config

Updated under an hour ago (Oct 27, 2026, 10:30 AM ET)

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It affects nextcloud security-advisories and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for nextcloud security-advisories

Exploited in the last 30 days

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before 31.0.14, and 32.0.0 to before 32.0.4, if {lang} is used in the template directory config value, non-admin users can in some cases copy arbitrary files (depending on unix permissions) into their own Nextcloud directory via a path traversal. It is recommended that the Nextcloud Server is upgraded to 32.0.4, 31.0.14. It is recommended that the Nextcloud Enterprise Server is upgraded to 32.0.4, 31.0.14, 30.0.17.7, 29.0.17.12, 28.0.14.15

CVSS: 4.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jun 2, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

nextcloud security-advisories nextcloud:security_advisories (from the name)	from 31.0.0, < 31.0.14; from 32.0.0, < 32.0.4	CNA record
nextcloud nextcloud_server nextcloud:nextcloud_server	from 31.0.0 before 31.0.14; from 32.0.0 before 32.0.4; from 28.0.0 before 28.0.14.15; from 29.0.0 before 29.0.17.12; from 30.0.0 before 30.0.17.7; from 31.0.0 before 31.0.14; from 32.0.0 before 32.0.4	NVD

References

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-j33j-qph5-4wch	x-refsource-confirm, mitigation, vendor-advisory
https://github.com/nextcloud/server/pull/57414/files	x-refsource-misc, issue-tracking, patch
https://hackerone.com/reports/3468140	x-refsource-misc, permissions-required

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.