CVE-2026-109823
Host filesystem path disclosure via DNS rebinding
- State
- Published
- Severity
- 2.3 Low
- Published
- Oct 27, 2026
- Updated
- Oct 27, 2026
- Reserved
- Oct 23, 2026
Description
An attacker can read the name of filesystem paths of your application present via Tidewave configuration via /tidewave/connect or via the rendered toolbar.
Neither response checks the Host header. A web page that rebinds its own domain to the loopback address can therefore read the tag with a same-origin request, which carries no Origin header. The paths usually reveal the local username and the project layout.
This issue affects tidewave: from 0.8.0 before 0.9.2.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.3 Low | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | EEF |
Weaknesses
- CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere
Affected Products
| Product | Versions |
|---|---|
tidewavetidewave-ai |
|
tidewavetidewave-ai |
|
References
- EEF CNA record for CVE-2026-109823relatedthird-party-advisory
- OSV record EEF-CVE-2026-109823related
- Introducing commit f78352b in tidewave-ai/tidewave_phoenixrelated
- Fix commit 8015953 in tidewave-ai/tidewave_phoenixpatch
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