CVE-2017-18105: Atlassian Crowd

High severity, CVSS 8.1. EPSS: 1.4% chance of exploitation in the next 30 days.

The console login resource in Atlassian Crowd before version 3.0.2 and from version 3.1.0 before version 3.1.1 allows remote attackers, who have previously obtained a user's JSESSIONID cookie, to gain access to some of the built-in and potentially third party rest resources via a session fixation vulnerability.

Affected products

• Atlassian Crowd: before 3.0.2 (fixed in 3.0.2); from 3.1.0, before 3.1.1 (fixed in 3.1.1)

Published 2019-03-29. Last modified 2026-06-17.