Medium severity5.3NVD Advisory· Published Aug 12, 2026· Updated Aug 12, 2026

CVE-2026-19643

Description

An out-of-bounds read issue in the Base64 decoder in Amazon aws-sdk-cpp before 1.11.862, on some platforms, might allow a remote authenticated user to crash 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-mxm9-xpf9-x66xnvd

News mentions

No linked articles in our index yet.

cvss	0.345
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000