CVE-2026-54203

Memory Leak to an Unauthorized Actor vulnerability in Tobit Laboratories AG TeamDavid's Webbox allows reading of sensitive information. When accessing the URL “/.well-known/mta-sts.”, the application responds with memory. By repeatedly requesting this endpoint, an attacker can access sensitive information, including user passwords. Exploitation does not require authentication. This issue affects TeamDavid before Rollout 528. Starting with Rollout 528 (June 30, 2026), the affected functionality is disabled by default and the vulnerabilities are therefore no longer exposed through this functionality.

CVSS

No CVSS.

References

Link	Resource
https://chayns.net/77892-10814/tapp/763210?postId=11454
https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative/

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-07 10:16

Updated : 2026-09-07 13:20

NVD link : CVE-2026-54203

Mitre link : CVE-2026-54203

CVE.ORG link : CVE-2026-54203

JSON object : View

Products Affected

No product.

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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