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CVE-2026-84783 Use-After-Free in X.509 Extension Cache Under Concurrent Use

🗓️ 29 Sep 2026 15:32:24Reported by opensslType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

Use-After-Free in OpenSSL X.509 Extension Cache causes DoS under concurrent use.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-84783
29 Sep 202615:32
–cve
euvd
EUVD
EUVD-2026-89014
29 Sep 202615:32
–euvd
nvd
NVD
CVE-2026-84783
29 Sep 202616:17
–nvd
openssl
OpenSSL
Use-After-Free in X.509 Extension Cache Under Concurrent Use
29 Sep 202600:00
–openssl
vulnrichment
Vulnrichment
CVE-2026-84783 Use-After-Free in X.509 Extension Cache Under Concurrent Use
29 Sep 202615:32
–vulnrichment
[
  {
    "defaultStatus": "unaffected",
    "product": "OpenSSL",
    "vendor": "OpenSSL",
    "versions": [
      {
        "lessThan": "4.0.3",
        "status": "affected",
        "version": "4.0.0",
        "versionType": "semver"
      }
    ]
  }
]

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