Answer in brief
CVE-2026-109823 records a Low severity (CVSS 2.3) vulnerability in Host filesystem path disclosure via DNS rebinding. The current sources do not mark it as known exploited. The current feed maps tidewave-ai/tidewave (generic), tidewave-ai/tidewave-ai/tidewave_phoenix (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 2.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps tidewave-ai/tidewave (generic), tidewave-ai/tidewave-ai/tidewave_phoenix (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| tidewave-ai/tidewavegeneric | >=0.8.0 <0.9.2 | 0.9.2 |
| tidewave-ai/tidewave-ai/tidewave_phoenixgeneric | >=f78352b56d19cd4ae49999aa385011cef73e8b93 <80159536f752dc4d34797934d1516f29cea12b50 | 80159536f752dc4d34797934d1516f29cea12b50 |
Published upstream
Oct 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 27, 2026
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.
Quoted source text, attributed separately from HOL analysis.