CVE-2021-26077: Improper Authentication in Atlassian Connect Spring Boot
8.8
CVSS Score
3.1
Basic Information
CVE ID
GHSA ID
EPSS Score
0.59149%
CWE
Published
6/16/2021
Updated
2/1/2023
KEV Status
No
Technology
Java
Technical Details
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
---|---|---|---|
com.atlassian.connect:atlassian-connect-spring-boot | maven | >= 1.1.0, < 2.1.3 | 2.1.3 |
com.atlassian.connect:atlassian-connect-spring-boot | maven | >= 2.1.4, < 2.1.5 | 2.1.5 |
Vulnerability Intelligence
Miggo AI
Root Cause Analysis
The vulnerability stems from lifecycle endpoints accepting context JWTs. The primary entry points would be: 1) The controller method directly handling installation events (LifecycleController.install), which would appear in stack traces during exploitation. 2) The JWT authentication filter processing all requests, which in vulnerable versions failed to reject context JWTs at lifecycle endpoints. The Confluence documentation explicitly mentions lifecycle endpoint validation regression in 2.1.4, indicating these are core authentication processing functions.