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EUVD-2026-61051

🗓️ 18 Aug 2026 15:44:26Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 1 Views

SSRF in MyBB remote requests via fail-open IPv6 verification bypass, fixed in 1.8.40.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-45123
18 Aug 202615:44
attackerkb
cve
CVE
CVE-2026-45123
18 Aug 202615:44
cve
cvelist
Cvelist
CVE-2026-45123 MyBB: IPv6 SSRF
18 Aug 202615:44
cvelist
nvd
NVD
CVE-2026-45123
18 Aug 202616:17
nvd
ptsecurity
Positive Technologies
PT-2026-77177
18 Aug 202600:00
ptsecurity
[
  {
    "enisaIdVendor": [
      {
        "id": "87670371-8143-30be-839e-a78ae8a6c61e",
        "vendor": {
          "name": "MyBB"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "b427402d-91a6-3b4b-84d6-9aaac0498b89",
        "product": {
          "name": "MyBB",
          "vendor": {
            "name": "MyBB"
          }
        },
        "product_version": "< 1.8.40"
      }
    ]
  }
]

Data

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18 Aug 2026 15:44Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.14.3
EPSS0.00022
1