What’s Vulnerable › Vulnerabilities

CVE-2021-41393

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-18 · updated 2026-06-17

Description

Teleport before 4.4.11, 5.x before 5.2.4, 6.x before 6.2.12, and 7.x before 7.1.1 allows forgery of SSH host certificates in some situations.

Affected products

• Goteleport Teleport: before 4.4.11; from 5.0 before 5.2.4; from 6.0 before 6.2.12; from 7.0 before 7.1.1 — fixed in 4.4.11, 5.2.4, 6.2.12, 7.1.1

How to fix

Upgrade to a fixed version: Goteleport Teleport 4.4.11, 5.2.4, 6.2.12, 7.1.1. Check the vendor advisory for mitigations.

References

• https://github.com/gravitational/teleport/releases/tag/v4.4.11
• https://github.com/gravitational/teleport/releases/tag/v5.2.4
• https://github.com/gravitational/teleport/releases/tag/v6.2.12
• https://github.com/gravitational/teleport/releases/tag/v7.1.1
• https://github.com/gravitational/teleport/releases/tag/v4.4.11
• https://github.com/gravitational/teleport/releases/tag/v5.2.4
• https://github.com/gravitational/teleport/releases/tag/v6.2.12
• https://github.com/gravitational/teleport/releases/tag/v7.1.1

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