VulnSocial

CVE-2026-45810Patch(nextcloud / nextcloud_server)

LOWCVSS 6.8 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch nextcloud nextcloud_server systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before 31.0.12, and 32.0.0 to before 32.0.3, a missing check of a relation allowed authenticated users with access to any file comment, to read the content of all comments. It is recommended that the Nextcloud Server is upgraded to 31.0.12 or 32.0.3. It is recommended that the Nextcloud Enterprise Server is upgraded to 21.0.9.20, 22.2.10.35, 23.0.12.31, 24.0.12.30, 25.0.13.25, 26.0.13.22, 27.1.11.22, 28.0.14.13, 29.0.16.10, 30.0.17.5, 31.0.12 or 32.0.3

nextcloud CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Patch / fix
Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-639

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • nextcloud_server

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
nextcloud
Products
nextcloud_server

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-06-17: 1Patch / Workaround · 2026-06-17: 1Technical Details · 2026-06-17: 106-17
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
Full discourse1 post
  • ThreatCluster@threatcluster
    Patch

    Fedora reported that Nextcloud Server 33.0.5 for Fedora 43/44 and EPEL fixes CVE-2026-45690, an authentication bypass allowing two-factor login circumvention, along with CVE-2026-45810 and CVE-2026-45285 data exposure flaws. https://threatcluster.io/cluster/critical-authentication-bypass-vulnerabilities-in-nextcloud--13d5065d

    Post summary

    Fedora has released patches for Nextcloud Server 33.0.5 addressing authentication bypass and data exposure CVEs (CVE‑2026‑45690, CVE‑2026‑45810, CVE‑2026‑45285).

    0000054
    356 followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appnextcloudnextcloud_server---
Appnextcloudnextcloud_server---

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