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CVE-2026-110310 RSA PKCS#1 v1.5 padding oracle via legacy envelope key format downgrade in Amazon S3 Encryption Client for .NET

🗓️ 14 Oct 2026 19:37:48Reported by AMZNType 
cvelist
 cvelist
🔗 www.cve.org👁 15 Views

Remote padding oracle in Amazon S3 Encryption Client for .NET allows object decryption.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-110310
15 Oct 202600:17
–circl
cve
CVE
CVE-2026-110310
14 Oct 202619:37
–cve
euvd
EUVD
EUVD-2026-101618
14 Oct 202619:37
–euvd
mend
Mend
CVE-2026-110310
14 Oct 202619:37
–mend
nvd
NVD
CVE-2026-110310
14 Oct 202620:17
–nvd
ptsecurity
Positive Technologies
PT-2026-114031
14 Oct 202600:00
–ptsecurity
vulnrichment
Vulnrichment
CVE-2026-110310 RSA PKCS#1 v1.5 padding oracle via legacy envelope key format downgrade in Amazon S3 Encryption Client for .NET
14 Oct 202619:37
–vulnrichment
[
  {
    "vendor": "Amazon",
    "product": "Amazon.Extensions.S3.Encryption",
    "versions": [
      {
        "status": "affected",
        "version": "2.1.0",
        "lessThanOrEqual": "2.*",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "3.0.0",
        "lessThanOrEqual": "3.2.1",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "4.0.0",
        "lessThanOrEqual": "4.0.2",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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