Teleport vulnerabilities: known CVEs & security history
Gravitational · Security / Access · 5 tracked CVEs · 0 actively exploited · updated June 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all Teleport release lines — 5 in total. A CVE here doesn't mean your version is affected — check Teleport's current status and the safe version to run.
Known Teleport CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2021-41393 | critical | 9.8 | 1% | 2021 |
| CVE-2022-36633 | high | 8.8 | 49% | 2022 |
| CVE-2022-38599 | medium | 6.5 | 1% | 2022 |
| CVE-2021-41395 | medium | 6.5 | 1% | 2021 |
| CVE-2021-41394 | medium | 5.3 | 1% | 2021 |
Is my Teleport version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your Teleport version → · Monitor Teleport for new CVEs →
Teleport vulnerabilities — frequently asked
How many known vulnerabilities does Teleport have?
IsItPatched tracks 5 CVEs for Teleport. 1 is critical-severity and 1 high-severity. These span every release line — what matters is whether the version you run is affected.
Does Teleport have any actively-exploited vulnerabilities?
None of Teleport's tracked CVEs are currently in CISA's KEV catalog — but new ones can be added at any time, so keep your version current.
What is the most severe Teleport vulnerability?
Among tracked issues, CVE-2021-41393 (CRITICAL, CVSS 9.8) ranks highest.
Is Teleport safe to use?
It depends on the version. The latest supported Teleport release (18.8.3) clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: Teleport security status · Teleport end-of-life · actively-exploited CVEs. Always verify against Gravitational's advisories — see our disclaimer.