An authentication bypass in the SSH service of gost v2.11.5 allows attackers to intercept…
Priority MEDIUM 50CWE-639Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-639.
Summary
An authentication bypass in the SSH service of gost v2.11.5 allows attackers to intercept communications via setting the HostKeyCallback function to ssh.InsecureIgnoreHostKey
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
- Total
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | github.com/ginuerzh/gost (Go) | up to 2.11.5 | — | No fix listed | GHSA-8wxx-35qc-vp6r |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/ginuerzh/gost (Go) Vendor— Affected up to 2.11.5 Fixed in — No fix listed GHSA-8wxx-35qc-vp6r
CPE names CISA-ADP · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ginuerzh:gost:*:*:*:*:*:*:*:* | — | — | — |
- cpe:2.3:a:ginuerzh:gost:*:*:*:*:*:*:*:* Versions — — ·—
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-39223
- 2026-10-03 Alias added: GHSA-8wxx-35qc-vp6r
References
Sources
- CVE-2024-39223 · CVE Program
- CVE-2024-39223 · NVD
- FIRST EPSS
- GHSA-8wxx-35qc-vp6r · GitHub Advisory Database · CC BY 4.0
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