Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Amazon | Aws Software Development Kit | < 1.11.862 |
Related Weaknesses (CWE)
References
- https://aws.amazon.com/security/security-bulletins/2026-080-aws/Vendor Advisory
- https://github.com/aws/aws-sdk-cpp/releases/tag/1.11.862Release Notes
- https://github.com/aws/aws-sdk-cpp/security/advisories/GHSA-wxx3-prfc-69xxVendor Advisory
FAQ
What is CVE-2026-19642?
CVE-2026-19642 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 proce...
How severe is CVE-2026-19642?
CVE-2026-19642 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-19642?
Check the references section above for vendor advisories and patch information. Affected products include: Amazon Aws Software Development Kit.