CVE-2026-74797
LowCVSS 3.1Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
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.
Risk Assessment
The risk is disruption of services, potentially leading to unavailability of systems managed by OpenTofu. The attack can be performed remotely if the attacker can control the package source.
Recommendation
It is recommended to upgrade OpenTofu to version 1.11.4 or later, which includes the fix. Also limit trust in package sources and use integrity verification mechanisms for archives.
Original NVD description (English source)
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.