CVE-2026-19643
mediumpriority · track · 0EPSS 0.006 · 47 %ileEUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.3–6
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
- amazon aws software development kit< 1.11.862nvdUScpe:2.3:a:amazon:aws_software_development_kit:*:*:*:*:*:*:*:*
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://aws.amazon.com/security/security-bulletins/2026-080-aws/cnnvd
- https://github.com/aws/aws-sdk-cpp/releases/tag/1.11.862cnnvd
- https://github.com/aws/aws-sdk-cpp/security/advisories/GHSA-mxm9-xpf9-x66xcnnvd
- https://aws.amazon.com/security/security-bulletins/2026-080-aws/enisa_euvd
- https://github.com/aws/aws-sdk-cpp/releases/tag/1.11.862enisa_euvd
- https://github.com/aws/aws-sdk-cpp/security/advisories/GHSA-mxm9-xpf9-x66xenisa_euvd
- https://aws.amazon.com/security/security-bulletins/2026-080-aws/Vendor Advisorynvd
- https://github.com/aws/aws-sdk-cpp/releases/tag/1.11.862Release Notesnvd
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