Answer in brief
CVE-2026-79669 records a Medium severity (CVSS 4.3) vulnerability in Ech0 before 4.4.3 Missing Authorization on System Logs. The current sources do not mark it as known exploited. The current feed maps lin-snow/Ech0 (generic), github.com/lin-snow/ech0 (go), github.com/lin-snow/ech0 (go). 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 4.3. 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 lin-snow/Ech0 (generic), github.com/lin-snow/ech0 (go), github.com/lin-snow/ech0 (go). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| lin-snow/Ech0generic | >=0 <4.4.3 | 4.4.3 |
| github.com/lin-snow/ech0go | >=0 <4.4.3 | 4.4.3 |
| github.com/lin-snow/ech0go | >=0 | Not reported |
Published upstream
Aug 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 25, 2026
Ech0 before 4.4.3 lacks authorization checks on system log endpoints allowing any authenticated non-admin user to read and stream all server logs. Attackers can access historical logs and real-time log streams via GET /api/system/logs, GET /api/system/logs/stream, and WS /ws/system/logs to gather reconnaissance data including internal file paths, error stack traces, and application state.
Quoted source text, attributed separately from HOL analysis.