will-moss Isaiah Websocket Connection Authentication main.go improper authentication
Priority LOW 38CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.
Summary
A vulnerability has been found in will-moss Isaiah up to 1.36.9. This affects an unknown function of the file app/main.go of the component Websocket Connection Authentication. The manipulation leads to improper authentication. The attack can be initiated remotely. The pull request to fix this issue awaits acceptance.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00696 53rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| will-moss | Isaiah | 1.36.0; 1.36.1; 1.36.2; 1.36.3; 1.36.4; 1.36.5; 1.36.6; 1.36.7; 1.36.8; 1.36.9 | — | No fix listed | CNA |
- Isaiah Vendorwill-moss Affected 1.36.0; 1.36.1; 1.36.2; 1.36.3; 1.36.4; 1.36.5; 1.36.6; 1.36.7; 1.36.8; 1.36.9 Fixed in — No fix listed CNA
CPE names CNA · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:will-moss:isaiah:*:*:*:*:*:*:*:* | — | — | — |
- cpe:2.3:a:will-moss:isaiah:*:*:*:*:*:*:*:* Versions — — ·—
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-15542
- 2026-10-03 Alias added: GHSA-9cxj-6mj4-pxvp
References
More will-moss vulnerabilities
- TI-2026-13080 will-moss Isaiah Master Websocket server.go Server.Handle authorization CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-15542 · CVE Program
- CVE-2026-15542 · NVD
- FIRST EPSS
- GHSA-9cxj-6mj4-pxvp · GitHub Advisory Database · CC BY 4.0
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