CVE-2026-60007: Eclipse Milo

High severity, CVSS 7.4. EPSS: 0.6% chance of exploitation in the next 30 days.

In Eclipse Milo versions 0.6.0 through 1.1.4, username-token processing returns distinguishable errors for invalid RSA PKCS#1 v1.5 padding and other authentication failures, allowing an on-path attacker who captures a victim's `Basic128Rsa15`-encrypted username token to use repeated unauthenticated `ActivateSession` requests as a padding oracle, recover the victim's password, and authenticate with the recovered credentials.

Affected products

• Eclipse Milo: from 0.6.0, before 1.1.5 (fixed in 1.1.5)

Published 2026-08-04. Last modified 2026-08-05.