CVE WatchJul 22, 2026

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

CVSS

6.3

Medium

EPSS

0.2%

p14

KEV

—

Exploit Today

0-100

Published: Jun 1, 2026 · Last modified: Jul 22, 2026 · CWE-284

EPSS · 30d

0.2%EPSS · 30 days0.2%

2026-07-282026-08-24

Technical description

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 to also access the chunking upload directly and see temporary part files during on going uploads. It is recommended that the Nextcloud Server is upgraded to 32.0.9 or 33.0.3. It is recommended that the Nextcloud Enterprise Server is upgraded to 26.0.13.26, 27.1.11.25, 28.0.14.17, 29.0.16.16, 30.0.17.9, 31.0.14.5, 32.0.9 or 33.0.3

Official references

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