Security Advisory
ZAA-2025-09
· Please read carefully and check if the version of your Zammad system is affected by this vulnerability. Please send us information regarding vulnerabilities in Zammad!
Security Advisory Details
- ID: ZAA-2025-09
- Date: 2025-09-24
- Title: Insecure Storage of Sensitive Information
- Severity: medium
- Product: Zammad 6.5.x
- Fixed in: Zammad 6.5.2
- References:
--> pending CVE assignment
Vulnerability Descriptions
Insecure Storage of Sensitive Information
Logging subsystem (HttpLog) would store complete requests in the database, including sensitive information like tokens, secrets, etc. This was prevented and existing HttpLog records were cleaned up.
Recommended Resolution
For our SaaS customers, there’s nothing you need to worry about: we’ve already taken care of everything for you.
For self hosted installations, we strongly advise admins to update their system to the latest release of Zammad.
Fixed releases can be found at:
Or just update your Zammad if installed via OS package manager.
Additional information
Online version of this advisory: https://zammad.com/en/advisories/zaa-2025-09
Please see our security policy and send remarks on security issues exclusively to security@zammad.com.