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CVE-2026-45278

🗓️ 05 Jun 2026 19:47:23Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 24 Views

Nextcloud versions 6.1.0 through 8.2.1 allow crafted login links via OpenID Connect to redirect users to another site; fixed in 8.2.2.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-45278
1 Jun 202616:51
–attackerkb
cnnvd
CNNVD
Nextcloud user_oidc 输入验证错误漏洞
1 Jun 202600:00
–cnnvd
cve
CVE
CVE-2026-45278
1 Jun 202616:51
–cve
cvelist
Cvelist
CVE-2026-45278 Nextcloud: Open Redirect in user_oidc login flow via protocol-relative URL bypass
1 Jun 202616:51
–cvelist
euvd
EUVD
EUVD-2026-33704
1 Jun 202616:51
–euvd
nextcloud
Nextcloud
Open Redirect in user_oidc login flow via protocol-relative URL bypass
12 May 202608:51
–nextcloud
mend
Mend
CVE-2026-45278
1 Jun 202616:51
–mend
nvd
NVD
CVE-2026-45278
1 Jun 202619:16
–nvd
ptsecurity
Positive Technologies
PT-2026-45523
1 Jun 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-45278: URL Redirection to Untrusted Site
1 Jun 202600:00
–rapid7
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05 Jun 2026 19:47Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.13.3 - 6.1
EPSS0.00322
SSVC
24