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CVE-2026-74796— OpenTofu before 1.11.7 Symlink Following Path Traversal

Quick assessment

Affected
opentofu opentofu
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.

opentofu是opentofu组织的一款基础设施即代码工具。 opentofu 1.11.7之前版本存在后置链接漏洞，该漏洞源于初始化期间未能验证提供程序缓存目录中的现有符号链接，可能导致攻击者在受信任的工作目录中放置恶意符号链接，使tofu init将提供程序包内容写入工作目录之外的任意文件系统位置。

CVSS 6.1 · Medium EPSS 0.23% · P14

Affected Version Matrix 2

VendorProduct Version RangeStatus
opentofu opentofu < 1.11.7 affected
1.11.7 unaffected
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I. Basic Information for CVE-2026-74796

Vulnerability Information
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Vulnerability Title
OpenTofu before 1.11.7 Symlink Following Path Traversal
Source: CVE Program / CVE List V5
Vulnerability Description
OpenTofu before 1.11.7 fails to validate existing symlinks in the provider cache directory during initialization. Attackers can place a malicious symlink in a trusted working directory to cause tofu init to write provider package contents to arbitrary filesystem locations outside the working tree.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
opentofu 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
opentofu是opentofu组织的一款基础设施即代码工具。 opentofu 1.11.7之前版本存在后置链接漏洞，该漏洞源于初始化期间未能验证提供程序缓存目录中的现有符号链接，可能导致攻击者在受信任的工作目录中放置恶意符号链接，使tofu init将提供程序包内容写入工作目录之外的任意文件系统位置。
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
opentofu opentofu 0 ~ 1.11.7 -

II. Public POCs for CVE-2026-74796

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III. Intelligence Information for CVE-2026-74796

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Vendor Advisories for CVE-2026-74796 (1)

Other References for CVE-2026-74796 (1)

Same Patch Batch · opentofu · 2026-08-16 · 3 CVEs total

CVE-2024-58375 7.5 HIGH OpenTofu before 1.8.3 Secret Variable Leaking via Static Evaluation
CVE-2026-74797 3.1 LOW OpenTofu before 1.11.4 Denial of Service via malicious zip

IV. Related Vulnerabilities

Same product: opentofu
Same vendor: opentofu
Same weakness: CWE-59

V. Comments for CVE-2026-74796

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