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CVE-2026-45407— Dokku: Git Credentials in .netrc Stored World-Readable Due to Premature touch

Quick assessment

Affected
dokku dokku
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Dokku Dokku是Dokku团队的一个云平台部署工具。 Dokku 0.38.2之前版本存在信任管理问题漏洞，该漏洞源于git:auth命令创建$DOKKU_ROOT/.netrc时使用默认umask 0644，导致git凭据可被本地用户读取。

CVSS 5.0 · Medium EPSS 0.12% · P2

Affected Version Matrix 1

VendorProduct Version RangeStatus
dokku dokku < 0.38.2 affected
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I. Basic Information for CVE-2026-45407

Vulnerability Information
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Vulnerability Title
Dokku: Git Credentials in .netrc Stored World-Readable Due to Premature touch
Source: CVE Program / CVE List V5
Vulnerability Description
Dokku is a docker-powered PaaS. Prior to 0.38.2, the git:auth command creates $DOKKU_ROOT/.netrc using bash's touch command, which applies the default umask of 0644. This pre-creation defeats the netrc binary's built-in 0600 permission setting, leaving git credentials readable by any local user who can traverse the dokku home directory. This vulnerability is fixed in 0.38.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的凭证保护机制
Source: CVE Program / CVE List V5
Vulnerability Title
Dokku 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Dokku Dokku是Dokku团队的一个云平台部署工具。 Dokku 0.38.2之前版本存在信任管理问题漏洞，该漏洞源于git:auth命令创建$DOKKU_ROOT/.netrc时使用默认umask 0644，导致git凭据可被本地用户读取。
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
dokku dokku < 0.38.2 -

II. Public POCs for CVE-2026-45407

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III. Intelligence Information for CVE-2026-45407

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Patches & Fixes for CVE-2026-45407 (1)

Vendor Advisories for CVE-2026-45407 (1)

Same Patch Batch · dokku · 2026-06-26 · 5 CVEs total

CVE-2026-45408 9.0 CRITICAL Dokku: OS Command Injection via App Name in Git Pre-Receive Hook
CVE-2026-45405 9.0 CRITICAL Dokku: Arbitrary File Write via Tar Symlink Traversal in git:from-archive and certs:add
CVE-2026-45406 9.0 CRITICAL Dokku: Host RCE via Maliciously Named OpenResty Include Files Injected Through eval
CVE-2026-54636 9.0 CRITICAL Dokku: OS Command Injection via app.json managed Cron

IV. Related Vulnerabilities

Same product: dokku
Same vendor: dokku
Same weakness: CWE-522

V. Comments for CVE-2026-45407

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