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CVE-2026-77164

🗓️ 18 Sep 2026 01:26:04Reported by hackeroneType 
cvelist
 cvelist
🔗 www.cve.org👁 8 Views

Circles unauthenticated blind SSRF via keyId URL fetch bypassing Nextcloud SSRF protections.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-77164
18 Sep 202601:26
cve
euvd
EUVD
EUVD-2026-82621
18 Sep 202603:30
euvd
hackerone
Hacker One
Nextcloud: Unauthenticated blind SSRF in Circles signature verification bypasses Nextcloud local-address protections
18 Aug 202510:24
hackerone
nvd
NVD
CVE-2026-77164
18 Sep 202602:17
nvd
[
  {
    "defaultStatus": "unaffected",
    "vendor": "Nextcloud",
    "product": "Server",
    "versions": [
      {
        "version": "31.0.0",
        "status": "affected",
        "lessThanOrEqual": "32.0.0",
        "versionType": "semver"
      }
    ]
  }
]

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18 Sep 2026 01:26Current
CVSS 36.2
8