Vulnerability
CVE-2026-63208
Descriptive record received from OpenCTI and minimised for consultation in the Intel portal.
- Sharing
- PUBLIC-OSINT
- Confidence
- 100
- Source
- The CVE Program
- Updated
- 26/09/2026 04:33
Description
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when a Microsoft Graph request fails, Zammad logs the error including the authentication token used to access the mailbox. The system attempts to hide this token in the log, but the masking is incomplete: for the token format Microsoft uses (JWT), only the first part is hidden, while the remaining parts remain readable in plain text. A Zammad admin with Microsoft Graph channel access can view these logs and see the partial token, which may reveal sensitive claims such as the account scope, tenant, or timing, and could assist in reconstructing the full token while it is still valid. This issue is fixed in version 7.1.2.
Aliases and classifications
CWE-116CWE-532Improper Encoding or Escaping of OutputInsertion of Sensitive Information into Log File
Minimised technical details
No raw data- cisa kev
- False
Provenance
Public references
- https://github.com/zammad/zammad/commit/2be46473eee405cc65b86a85d17059802e658532
https://github.com/zammad/zammad/commit/2be46473eee405cc65b86a85d17059802e658532 - https://github.com/zammad/zammad/security/advisories/GHSA-qh8m-g5vr-7272
https://github.com/zammad/zammad/security/advisories/GHSA-qh8m-g5vr-7272
EudorIA correlation
Intel catalogue
The vulnerability is also available in the EudorIA editorial catalogue.
Open EudorIA analysisPresence in OpenCTI describes an intelligence correlation and does not, by itself, constitute evidence of compromise, legal attribution or operational guidance applicable without context verification.