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CVE-2026-8720

🗓️ 25 Jun 2026 21:18:29Reported by wolfSSLType 
cve
 cve
🔗 web.nvd.nist.gov👁 24 Views

CVE-2026-8720: HMAC-BLAKE2 final discards the message if the key exceeds the block size, yielding a key-only MAC.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
CVE-2026-8720
25 Jun 202621:18
attackerkb
alpinelinux
CVE-2026-8720
25 Jun 202621:18
alpinelinux
circl
CVE-2026-8720
25 Jun 202621:52
circl
cvelist
CVE-2026-8720 HMAC-BLAKE2 final discards message when key length exceeds block size
25 Jun 202621:18
cvelist
debiancve
CVE-2026-8720
25 Jun 202621:18
debiancve
euvd
EUVD-2026-39579
26 Jun 202600:32
euvd
nvd
CVE-2026-8720
25 Jun 202622:17
nvd
osv
CVE-2026-8720 HMAC-BLAKE2 final discards message when key length exceeds block size
25 Jun 202621:18
osv
osv
DEBIAN-CVE-2026-8720
25 Jun 202622:17
osv
osv
UBUNTU-CVE-2026-8720
25 Jun 202622:17
osv
Rows per page
NVD
Node
wolfsslwolfsslRange5.9.05.9.2
[
  {
    "vendor": "wolfSSL",
    "product": "wolfSSL",
    "collectionURL": "https://github.com/wolfSSL/wolfssl",
    "versions": [
      {
        "status": "affected",
        "version": "5.9.0",
        "lessThanOrEqual": "5.9.1",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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27 Jun 2026 19:43Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
CVSS 45.9
EPSS0.00111
SSVC
24