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.
CVE-2026-74796
Score 6.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-16. a secondary CVSS source baseline 6.1; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.1
- EG Score
- 6.1(high)
- EG Risk
- 28(Track)EG Risk 28/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity61% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 14%
- KEV
- Not listed
Published
August 16, 2026
Last Modified
August 17, 2026
Advisory Details (2)
Auto-updated Aug 16, 2026OpenTofu before 1.11.7 Symlink Following Path Traversal | Advisories | VulnCheck
https://www.vulncheck.com/advisories/opentofu-before-symlink-following-path-traversalProvider cache installation follows root-module-controlled package directory symlink and writes outside the working tree · Advisory · opentofu/opentofu · GitHub
https://github.com/opentofu/opentofu/security/advisories/GHSA-wcmj-x466-56mmVendor Advisories for CVE-2026-74796(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/opentofu/opentofu | — | 1.11.7 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 19× in last 7d / 19× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-20 22:56 UTCEPSS rescore
- 2026-08-20 18:50 UTCGHSA enrichment
- 2026-08-19 18:21 UTCEG score recompute
- 2026-08-19 18:21 UTCGHSA enrichment
- 2026-08-19 17:04 UTCEPSS rescore
- 2026-08-18 16:59 UTCEG score recompute
- 2026-08-18 16:59 UTCGHSA enrichment
- 2026-08-18 13:49 UTCEPSS rescore
- 2026-08-18 13:49 UTCEPSS rescore
- 2026-08-17 16:24 UTCEG score recompute
- 2026-08-17 16:24 UTCGHSA enrichment
- 2026-08-17 16:11 UTCEG score recompute
- 2026-08-17 16:11 UTCGHSA enrichment
- 2026-08-17 15:05 UTCEG score recompute
- 2026-08-17 15:05 UTCGHSA enrichment
- 2026-08-17 13:47 UTCEPSS rescore
- 2026-08-16 14:36 UTCEG score recompute
- 2026-08-16 13:27 UTCEG score recompute
- 2026-08-16 13:26 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
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Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-74796
Is Your Infrastructure Affected by CVE-2026-74796?
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