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CVE-2026-6550 Key commitment policy bypass via shared key cache in AWS Encryption SDK for Python

🗓️ 20 Apr 2026 19:20:23Reported by AMZNType 
cvelist
 cvelist
🔗 www.cve.org👁 33 Views

CVE-2026-6550: AWS Encryption SDK for Python bypasses key commitment via shared key cache; fixed in 3.3.1 and 4.0.5+.

Related
Affected
Refs
[
  {
    "vendor": "AWS",
    "product": "AWS Encryption SDK for Python",
    "versions": [
      {
        "status": "affected",
        "version": "2",
        "lessThanOrEqual": "2.5.1",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "3",
        "lessThanOrEqual": "3.3.0",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "4",
        "lessThanOrEqual": "4.0.4",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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