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Teleport allows remote authentication bypass

Critical severity GitHub Reviewed Published Jun 16, 2025 in gravitational/teleport • Updated Jun 18, 2025

Package

gomod github.com/gravitational/teleport (Go)

Affected versions

>= 17.0.0, < 17.5.2
>= 16.0.0, < 16.5.12
>= 15.0.0, < 15.5.3
>= 14.0.0, < 14.4.1
>= 13.0.0, < 13.4.27
>= 0.0.11, < 12.4.35
<= 0.0.0-20250616162021-79b2f26125a1

Patched versions

17.5.2
16.5.12
15.5.3
14.4.1
13.4.27
12.4.35

Description

Impact

A full technical disclosure and open-source patch will be published after the embargo period, ending on June 30th, to allow all users to upgrade.

Teleport security engineers identified a critical security vulnerability that could allow remote authentication bypass of Teleport.

Teleport Cloud Infrastructure and CI/CD build, test, and release infrastructure aren’t affected.

For the full mitigation, upgrade both Proxy and Teleport agents. It is strongly recommend updating clients to the released patch versions as a precaution.

Have questions?

Patches

Fixed in versions: 17.5.2, 16.5.12, 15.5.3, 14.4.1, 13.4.27, 12.4.35.

These patches are available only on the official Teleport distribution channels.

These versions are designated as Critical Security Exception Versions.

For these specific patch versions of Teleport Community Edition, the Community Edition restrictions are removed on employee count or revenue thresholds, as long as you apply the patch within thirty (30) days of its official release.

Please read the full text of the updated Teleport Community Edition license for details.

References

@rob-picard-teleport rob-picard-teleport published to gravitational/teleport Jun 16, 2025
Published to the GitHub Advisory Database Jun 16, 2025
Reviewed Jun 16, 2025
Published by the National Vulnerability Database Jun 17, 2025
Last updated Jun 18, 2025

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(43rd percentile)

Weaknesses

CVE ID

CVE-2025-49825

GHSA ID

GHSA-8cqv-pj7f-pwpc

Source code

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