A flaw exists in tang, a network-based cryptographic binding server, which could result in leak of private keys.
Priority LOW 36CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-200.
Summary
A flaw exists in tang, a network-based cryptographic binding server, which could result in leak of private keys.
Why it matters now
EPSS 0.01564 75th percentileScored 2026-11-08
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | tang | Affects tang v8 and above | Fixed in tang v11. | — | No fix listed | CNA |
- tang Vendor— Affected Affects tang v8 and above | Fixed in tang v11. Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:tang_project:tang:*:*:*:*:*:*:*:* | 8 to before 11 | Vulnerable | Tang Project |
- cpe:2.3:a:tang_project:tang:*:*:*:*:*:*:*:* Versions 8 to before 11 Vulnerable ·Tang Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 3 products
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2021-4076
- 2026-10-03 Alias added: GHSA-83f4-c2vq-g2p3
References
More Tang Project Tang vulnerabilities
- TI-2023-01569 Race condition exists in the key generation and rotation functionality CVSS 3.1MEDIUM 5.3
Sources
- CVE-2021-4076 · CVE Program
- CVE-2021-4076 · NVD
- FIRST EPSS
- GHSA-83f4-c2vq-g2p3 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-4076 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences