Answer in brief
CVE-2026-79673 records a Medium severity (CVSS 6.5) vulnerability in Ech0 before 4.4.3 Scope Bypass via profile:read Token. 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 6.5. 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
Aug 31, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 25, 2026
Ech0 before 4.4.3 protects the PUT /user endpoint with the profile:read scope, a read-only scope, but allows write operations including password changes. An attacker with an admin's profile:read access token can change the admin's password and login to obtain an unrestricted session token that bypasses all scope enforcement.
Quoted source text, attributed separately from HOL analysis.