TI-2026-39107 Aliases CVE-2026-54203 GHSA-v8q6-f954-39gq

TeamDavid: Memory Leak leaking sensitive information

MEDIUM 46CWE-200Published 2026-08-07 · Updated 2026-09-07

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-200.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00559 46th percentileScored 2026-11-07

Fix Fixed TeamDavid (Tobit Laboratories AG): Rollout 528

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Tobit Laboratories AG	TeamDavid	before Rollout 528	Rollout 528	Patch available	CNA

TeamDavid VendorTobit Laboratories AG Affected before Rollout 528 Fixed in Rollout 528 Patch available CNA

Remediation

Fix · CNA TeamDavid (Tobit Laboratories AG) Fixed in Rollout 528

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-08-07
Tobit Laboratories TeamDavid Rollout 528
22 records Highest priority Priority HIGH 3 HIGH, 10 MEDIUM, 9 LOW
Other records, highest priority first
- TI-2026-39117 TeamDavid: Denial of Service via endpoint 'internalRestart'Priority HIGH 79
- TI-2026-39122 TeamDavid: Weak Cryptography and Insecure Password StoragePriority HIGH 77
- TI-2026-39116 TeamDavid: Buffer Overflow in JSON-parsingPriority HIGH 76
Show all 22 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-54203
2026-10-03 Alias added: GHSA-v8q6-f954-39gq

References

Advisory 1

https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative/

Other 1

https://chayns.net/77892-10814/tapp/763210?postId=11454

TI-2026-39117 TeamDavid: Denial of Service via endpoint 'internalRestart' CVSS 4.0CRITICAL 9.2
TI-2026-39122 TeamDavid: Weak Cryptography and Insecure Password Storage CVSS 4.0HIGH 8.8
TI-2026-39116 TeamDavid: Buffer Overflow in JSON-parsing CVSS 4.0CRITICAL 9.5
TI-2026-39121 TeamDavid: Stored XSS in web application CVSS 4.0MEDIUM 5.3
TI-2026-39120 TeamDavid: Reflected Cross Site Scripting (XSS) via the 'EntryInfo' parameter CVSS 4.0MEDIUM 5.3
TI-2026-39119 TeamDavid: Open Redirect via the 'replyUrl' parameter CVSS 4.0MEDIUM 5.3

See all 21 →

Sources

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