Medium severity5.9NVD Advisory· Published Aug 12, 2026· Updated Aug 12, 2026

CVE-2026-19642

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.

Affected products

Amazon/aws-sdk-cppllm-create
Range: <1.11.862

Patches

Vulnerability mechanics

References

aws.amazon.com/security/security-bulletins/2026-080-aws/nvd
github.com/aws/aws-sdk-cpp/releases/tag/1.11.862nvd
github.com/aws/aws-sdk-cpp/security/advisories/GHSA-wxx3-prfc-69xxnvd

News mentions

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cvss	0.384
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000