CVE search · CVE-2026-19642

CVE-2026-19642

medium 6.0

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.

Open in the NVD CVE.org JSON

Status: Analyzed
Published: 2026-08-12
Last changed: 2026-10-23
Source: ff89ba41-3aa1-4d27-914a-91399e9639e5
Weakness: CWE-787

Severity

Version	Score	Vector	Source
CVSS 4.0	medium 6.0	`CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X`	ff89ba41-3aa1-4d27-914a-91399e9639e5Secondary
CVSS 3.1	medium 5.9	`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H`	ff89ba41-3aa1-4d27-914a-91399e9639e5Secondary

Affected products

Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.

amazon · aws_software_development_kit

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

CVE-2026-19642

Details

Severity

Affected products

References