CVE-2026-19642

Medium

Open

TLP:CLEAR

Out-of-bounds write in the Base64 decoder in Amazon aws-sdk-cpp

NVD CVE.org

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Description

An out-of-bounds write issue in the Base64 decoder in Amazon aws-sdk-cpp before 1.11.862 might allow a remote authenticated user to cause a crash or heap memory corruption in an application that processes crafted Base64-encoded input. To remediate this issue, users should upgrade to version 1.11.862.

Details

CVSS Score: 5.9
CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
Confidence: 90%
Published: Aug 12, 2026
Last Modified: Aug 13, 2026

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