Vulnerability in Nextcloud Security-advisories

CVE-2026-45157

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.9, and 33.0.0 to before 33.0.3, when a malicious user has access to a file share of a user, they could use this share token…

EPSS: 0.000 (8.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-45157?
CVE-2026-45157 is a medium-severity vulnerability in Nextcloud Security-advisories, classified under Improper Access Control. CVSS score: 6.3/10. Published 2026-06-01.
How severe is CVE-2026-45157?
Medium severity. CVSS v3 base score is 6.3 out of 10.