Skip to content

Remote authentication bypass

Critical
rob-picard-teleport published GHSA-8cqv-pj7f-pwpc Jun 16, 2025

Package

Teleport

Affected versions

<17.5.2

Patched versions

17.5.2, 16.5.12, 15.5.3, 14.4.1, 13.4.27, 12.4.35

Description

Impact

This is a limited version of a notification we have sent to customers. If you are a customer, refer to the original communication and FAQ we sent you for more details.

We will follow up with a full technical disclosure and open-source patch 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, we require you to upgrade both Proxy and Teleport agents. We also 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.

We are designating these versions as Critical Security Exception Versions.

For these specific patch versions of Teleport Community Edition, we are removing Community Edition restrictions 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.

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

CVE ID

CVE-2025-49825

Weaknesses

No CWEs