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Vulnerability record · CVE-2026-74796 · published 16 August 2026

CVE-2026-74796: Link following vulnerability

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.

7.0 CVSS 4.0 High EPSS 0.34% · top 75.2% CWE-59 · Link following Awaiting Analysis
7.0CVSS 4.0 base score
0.34%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
8 Sep 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/opentofu/opentofu/security/advisories/GHSA-wcmj-x466-56mm
https://www.vulncheck.com/advisories/opentofu-before-symlink-following-path-traversal

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Source: NIST National Vulnerability Database (record CVE-2026-74796), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.