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CVE-2026-64679— Atlantis: Path Traversal in Atlantis Workspace Handling Allows Out-of-Bounds Directory Deletion/Creation

Quick assessment

Affected
runatlantis atlantis
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Atlantis是Atlantis社区的一个自托管的 Golang 应用程序，通过 Webhook 监听 Terraform 拉取请求事件。 Atlantis 0.19.8版本至0.45.0之前版本存在安全漏洞，该漏洞源于对用户控制的工作区值验证不一致，导致路径遍历，可能造成完整性丢失或拒绝服务。

CVSS 8.1 · High EPSS 0.80% · P56

Affected Version Matrix 1

VendorProduct Version RangeStatus
runatlantis atlantis >= 0.19.8, < 0.45.0 affected
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I. Basic Information for CVE-2026-64679

Vulnerability Information
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Vulnerability Title
Atlantis: Path Traversal in Atlantis Workspace Handling Allows Out-of-Bounds Directory Deletion/Creation
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Atlantis 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Atlantis是Atlantis社区的一个自托管的 Golang 应用程序，通过 Webhook 监听 Terraform 拉取请求事件。 Atlantis 0.19.8版本至0.45.0之前版本存在安全漏洞，该漏洞源于对用户控制的工作区值验证不一致，导致路径遍历，可能造成完整性丢失或拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
runatlantis atlantis >= 0.19.8, < 0.45.0 -

II. Public POCs for CVE-2026-64679

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8025 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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Trigger conditions & impact
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Exploit chain & mitigation
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III. Intelligence Information for CVE-2026-64679

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Patches & Fixes for CVE-2026-64679 (1)

Vendor Advisories for CVE-2026-64679 (1)

Vendor Pages for CVE-2026-64679 (1)

IV. Related Vulnerabilities

Same product: atlantis
Same vendor: runatlantis
Same weakness: CWE-22

V. Comments for CVE-2026-64679

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