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CVE-2026-71887 OpenPGP data signature accepted from a signing subkey without cross-certification

🗓️ 03 Oct 2026 08:39:07Reported by bcorgType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

Bouncy Castle for Java accepts OpenPGP data signatures from subkeys without cross-certification.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-71887
3 Oct 202609:00
–circl
cve
CVE
CVE-2026-71887
3 Oct 202609:00
–cve
euvd
EUVD
EUVD-2026-91993
3 Oct 202608:39
–euvd
nvd
NVD
CVE-2026-71887
3 Oct 202609:17
–nvd
[
  {
    "vendor": "Legion of the Bouncy Castle Inc.",
    "product": "BC-JAVA",
    "platforms": [
      "all"
    ],
    "collectionURL": "https://www.bouncycastle.org/download/bouncy-castle-java/",
    "packageName": "bcpg",
    "repo": "https://github.com/bcgit/bc-java",
    "packageURL": "pkg:maven/org.bouncycastle/bcpg-jdk18on",
    "modules": [
      "pg"
    ],
    "programFiles": [
      "OpenPGPCertificate"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "1.81",
        "lessThan": "1.86",
        "versionType": "maven"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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