5.9
Medium
CVE-2026-19642 An out-of-bounds write issue in the Base64 decoder in Amazon aws-sdk-cpp before 1.11.862 might allow a remote…
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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| aws-sdk-cpp 1.11 | earliest → 1.11.861 | No fix stated |