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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 13 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 12 Aug 2026 20:15:00 +0000


Wed, 12 Aug 2026 19:45:00 +0000

Type Values Removed Values Added
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.
Title Out-of-bounds read in the Base64 decoder in Amazon aws-sdk-cpp on signed-char platforms
First Time appeared Aws
Aws aws-sdk-cpp
Weaknesses CWE-125
CPEs cpe:2.3:a:aws:aws-sdk-cpp:*:*:*:*:*:*:*:*
Vendors & Products Aws
Aws aws-sdk-cpp
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-08-13T12:36:31.287Z

Reserved: 2026-08-12T16:52:29.486Z

Link: CVE-2026-19643

cve-icon Vulnrichment

Updated: 2026-08-13T12:36:27.931Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-08-12T20:17:42.800

Modified: 2026-08-13T13:17:49.123

Link: CVE-2026-19643

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-13T09:48:00Z

Weaknesses