CVE-2026-34917: Revive Adserver

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Low‑privileged session IDs generated for the web admin console could be reused in the XML‑RPC API, whose authentication is normally restricted to admin users. An attacker could leverage this to gain unauthorised access and exploit API‑level vulnerabilities. The session context (web/API) is now recorded along with other session data, preventing session IDs from being used interchangeably.

Affected products

• Revive Adserver: up to and including 6.0.6

Published 2026-06-23. Last modified 2026-06-25.