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CVE-2026-55964 Chain intermediate CA:TRUE without keyCertSign accepted as a signing CA (temporary CA exemption)

🗓️ 25 Jun 2026 19:30:34Reported by wolfSSLType 
cvelist
 cvelist
🔗 www.cve.org👁 37 Views

Temporary chain intermediates with CA:TRUE and no keyCertSign are now rejected as signing CAs; only operator-loaded and self-signed roots remain exempt.

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Refs
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5 Jul 202600:25
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Debian CVE
CVE-2026-55964
25 Jun 202619:30
debiancve
EUVD
EUVD-2026-39544
25 Jun 202619:30
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NVD
CVE-2026-55964
25 Jun 202620:17
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OSV
DEBIAN-CVE-2026-55964
25 Jun 202620:17
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OSV
JLSEC-2026-738 Chain intermediate CA:TRUE without keyCertSign accepted as a signing CA. Intermediate CA...
14 Jul 202621:41
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OSV
UBUNTU-CVE-2026-55964
25 Jun 202620:17
osv
Rows per page
[
  {
    "vendor": "wolfSSL",
    "product": "wolfSSL",
    "collectionURL": "https://github.com/wolfSSL/wolfssl",
    "versions": [
      {
        "status": "affected",
        "version": "5.7.4",
        "lessThanOrEqual": "5.9.1",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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