What is CVE-2026-74797?

CVE-2026-74797 is a low-severity vulnerability in Opentofu, classified under Uncontrolled Resource Consumption. CVSS score: 3.1/10. Published 2026-08-16.

How severe is CVE-2026-74797?

Low severity. CVSS v3 base score is 3.1 out of 10.

Resource exhaustion in Opentofu

CVE-2026-74797

OpenTofu versions before 1.11.4 contain a denial of service vulnerability in the tofu init command when processing maliciously-crafted .zip archives for provider or module packages. Attackers can cause excessive CPU usage by controlling .zip archive content served during dependency installation, degrading system performance and preventing timely completion of the init process.

Vulnerability class: DoS (Denial of Service)

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L.

Affected products

Opentofu — versions 0, 1.11.4

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-74797?: CVE-2026-74797 is a low-severity vulnerability in Opentofu, classified under Uncontrolled Resource Consumption. CVSS score: 3.1/10. Published 2026-08-16.
How severe is CVE-2026-74797?: Low severity. CVSS v3 base score is 3.1 out of 10.