CVE-2026-64679: high-severity vulnerability in runatlantis atlantis
Atlantis: Path Traversal in Atlantis Workspace Handling Allows Out-of-Bounds Directory Deletion/Creation
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 0.8%
Atlantis is a self-hosted golang application that listens for Terraform pull request events via webhooks. From 0.19.8 until 0.45.0, Atlantis does not consistently validate user-controlled workspace values supplied through accepted repository-level atlantis.yaml configuration or authenticated /api/plan input before joining them into local workspace paths. Traversal segments can escape the intended per-pull workspace directory and cause clone preparation or other working-directory code paths to call os.RemoveAll, os.MkdirAll, or related filesystem operations on out-of-bounds directories before Terraform rejects the invalid workspace name. This can create, delete, or reuse writable paths with the privileges of the Atlantis process, causing integrity loss or denial of service. This issue is fixed in version 0.45.0.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Affected products
runatlantis · atlantisRelated CVEs — runatlantis atlantis
In the same product, most dangerous first.
CVE-2024-52009HIGHGit credentials are exposed in atlantis logsEPSS 0.7%CVE-2026-116676HIGHAtlantis: OS command injection through PR-controlled Terraform workspace enables RCE during planEPSS 0.5%CVE-2025-58445MEDIUMAtlantis Exposes Service Version Publicly on /status API EndpointEPSS 0.5%CVE-2026-82282HIGHAtlantis GitHub App Setup Endpoint Returns App Credentials to Unauthenticated CallersEPSS 0.4%