What’s Vulnerable › Vulnerabilities

CVE-2021-4076

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-03-02 · updated 2026-06-17
• Weakness: CWE-200

Description

A flaw exists in tang, a network-based cryptographic binding server, which could result in leak of private keys.

Affected products

• tang: from 8 before 11 — fixed in 11

How to fix

Upgrade to a fixed version: tang 11. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2029814
• https://github.com/latchset/tang/commit/e82459fda10f0630c3414ed2afbc6320bb9ea7c9
• https://github.com/latchset/tang/pull/81
• https://bugzilla.redhat.com/show_bug.cgi?id=2029814
• https://github.com/latchset/tang/commit/e82459fda10f0630c3414ed2afbc6320bb9ea7c9
• https://github.com/latchset/tang/pull/81

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