CVE-2026-19643 — Out-of-bounds read in the Base64 decoder in Amazon aws-sdk-cpp on signed-char platforms
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 …
Published: 2026-08-12 · CVSS: 6.0 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7