Infinite Loop in Apache James
In Apache James, while fuzzing with Jazzer the IMAP parsing stack, we discover that crafted APPEND and STATUS IMAP command could be used to trigger infinite loops resulting in expensive CPU computations and OutOfMemory exceptions. This can be used for a Denial Of Service attack. The IMAP user needs to be authenticated to exploit this vulnerability. This affected Apache James prior to version 3.6.1. This vulnerability had been patched in Apache James 3.6.1 and higher. We recommend the upgrade.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.james:james-server | < 3.6.1 | 3.6.1 |
References
- Weakness (CWE)
CWE-835- Platform
- Java / Kotlin (Maven)
- Package
org.apache.james:james-server- Disclosed
- 08.01.2022
- Updated
- 11.10.2026 13:19
Sources and licenses
OSV / GitHub Advisory Database - GHSA-fqgw-6qj5-8hmp - CC BY 4.0
Vulnerability history: org.apache.james:james-server
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 11
- First → latest
- 01.2022 02.2024
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- High 4
- Medium 5
Disclosures per year
- 2022: 8
- 2023: 1
- 2024: 2
- 2025: 0
- 2026: 0
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