Out-of-bounds Read Affecting aws-sdk-cpp package, versions [0,]


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.56% (45th percentile)

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  • Snyk IDSNYK-CONAN-AWSSDKCPP-20074797
  • published24 Sept 2026
  • disclosed12 Aug 2026
  • creditUnknown

Introduced: 12 Aug 2026

CVE-2026-19643  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read in the Base64 decoder when processing crafted Base64-encoded input on platforms where the char type is signed. An attacker can cause an application crash by submitting specially crafted input.

CVSS Base Scores

version 4.0
version 3.1