CVE-2026-54199 TeamDavid: Header Injection through request body in link storing functionality
Attackers can inject HTTP headers via the request body in the link storing feature, potentially manipulating redirect responses.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-54199?
CVE-2026-54199 is a medium-severity vulnerability in Tobit Laboratories AG TeamDavid, published on 7 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Tobit Laboratories AG TeamDavid's Webbox is vulnerable to HTTP header injection through the request body in the application's link storing functionality (//ServerClient_celink.htm), which is appended to the redirect target in the 302 HTTP response. If a line feed is added, this will also be added to the redirect link, resulting in the ability to control the response headers. 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.
Weakness: CWE-20
Which versions are affected by CVE-2026-54199?
How do I fix CVE-2026-54199?
No fix has been published for CVE-2026-54199 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-54199 being exploited?
There is no known exploitation of CVE-2026-54199 in the wild and no public exploit code.
Sources
Also known as GHSA-pfmg-m2fv-v732.