CVE-2026-79673 json
Ech0 before 4.4.3 Scope Bypass via profile:read Token
published 7mo ago modified 2mo ago also EUVD-2026-65441 , GHSA-hm2h-wwwh-g49x , GO-2026-5431
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 37%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/lin-snow/ech0 4.4.3
- lin-snow Ech0 4.4.3
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2mo ago
Exploit prediction
0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.5 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
| CNA | 4.0 | 8.5 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/lin-snow/ech0 | <4.4.3 all versions |
4.4.3 |
Affected products
- lin-snow Ech0
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/lin-snow/Ech0/security/advisories/GHSA-hm2h-wwwh-g49x
vendor-advisory, web, advisory
-
vulncheck.com
/advisories/ech0-before-scope-bypass-via-profile-read-token
third-party-advisory
-
github.com
/lin-snow/Ech0
package
-
github.com
/lin-snow/Ech0/releases/tag/v4.4.3
web
Sources
- CVE List CVE-2026-79673
- GitHub Advisory GHSA-hm2h-wwwh-g49x
- NVD CVE-2026-79673
- OSV GO-2026-5431
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.