CVE-2026-47831: Cloud Foundry Foundation Bosh-Windows-Stemcell-Builder

High severity, CVSS 7.7. EPSS: 0.3% chance of exploitation in the next 30 days.

Use of a cryptographically weak random number generator in the GenerateRandomPassword function in bosh-windows-stemcell-builder allows a remote attacker to brute-force the resulting SSH login via TCP/22. Affected versions: bosh-windows-stemcell-builder versions prior to v2019.98.

Affected products

• Cloud Foundry Foundation Bosh-Windows-Stemcell-Builder: before 2019.98 (fixed in 2019.98)

Published 2026-07-09. Last modified 2026-07-09.