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CVE-2026-45284Disclosure(nextcloud / user_oidc)

LOWCVSS 8.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Nextcloud is an open source content collaboration platform. From version 1.3.6 to before version 8.4.0, an improper check allowed users that where provided by LDAP to still authenticate towards user OIDC after they where deleted. This issue has been patched in version 8.4.0.

nextcloud CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Patch / fix
Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-284

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.

  • user_oidc

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
nextcloud
Products
user_oidc

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-06-04: 1Technical Details · 2026-06-04: 106-04
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
Full discourse1 post
  • DailyCVE@dailycve
    Disclosure

    🟠 Nextcloud, Improper Access Control, #CVE-2026-45284 (Moderate) -DC-Jun2026-182 https://dailycve.com/nextcloud-improper-access-control-cve-2026-45284-moderate-dc-jun2026-182/

    Post summary

    The post announces the CVE-2026-45284, an improper access control vulnerability in Nextcloud with moderate severity, but provides no further details on PoCs, exploits, or patches.

    0000033
    208 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appnextclouduser_oidc---

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