CVE-2026-74797

A flaw was found in OpenTofu. A remote attacker could exploit this vulnerability by providing maliciously-crafted .zip archives during the tofu init command, which is used for provider or module package initialization. This could lead to excessive CPU usage, causing a Denial of Service DoS by...

CVE-2026-74796

A flaw was found in OpenTofu. This vulnerability allows attackers to exploit a symlink following path traversal during the initialization process. By placing a malicious symbolic link in a trusted working directory, an attacker can cause the 'tofu init' command to write provider package contents ...

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,...

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,...

CVE-2026-74797 OpenTofu before 1.11.4 Denial of Service via malicious zip

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,...

EUVD-2026-59962

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,...

CVE-2026-74797

OpenTofu before 1.11.4 is affected by a denial-of-service vulnerability in the tofu init command when handling maliciously crafted .zip archives for provider or module packages. Processing such archives can trigger excessive CPU usage during dependency installation, degrading system performance a...

CVE-2026-74797 OpenTofu before 1.11.4 Denial of Service via malicious zip

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,...

EUVD-2026-59961

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...

GO-2026-5558 OpenTofu: Excessive resource usage in "tofu init" when installing dependencies from attacker-controlled server in github.com/opentofu/opentofu

OpenTofu: Excessive resource usage in "tofu init" when installing dependencies from attacker-controlled server in github.com/opentofu/opentofu...

GO-2026-5441 OpenTofu has unbounded memory usage, high CPU usage, or deadlock in "tofu init" with maliciously-crafted dependency responses in github.com/opentofu/opentofu

OpenTofu has unbounded memory usage, high CPU usage, or deadlock in "tofu init" with maliciously-crafted dependency responses in github.com/opentofu/opentofu...

GHSA-WCMJ-X466-56MM OpenTofu: Provider cache installation follows root-module-controlled package directory symlink and writes outside the working tree

Summary If a symlink already exists under the .terraform/providers directory where a provider package needs to be installed, tofu init would follow that symlink and install the new package content into it. If an attacker can coerce an operator into running tofu init in a directory whose contents...

GHSA-PXH5-6RRC-8RJV OpenTofu: Excessive resource usage in "tofu init" when installing dependencies from attacker-controlled server

Impact Unauthenticated denial of service. Summary When installing provider or module packages from attacker-controlled servers, the server may cause tofu initto enter an infinite loop sending garbage data to that server. Those who depend on modules or providers served from untrusted third-party...

GHSA-HW5X-4R37-72W7 OpenTofu has unbounded memory usage, high CPU usage, or deadlock in "tofu init" with maliciously-crafted dependency responses

Impact Unauthenticated denial of service. Summary When installing module packages from attacker-controlled sources, tofu init may use unbounded memory, cause high CPU usage, or deadlock when encountering maliciously-crafted TLS certificate chains or tar archives. Those who depend on modules or...

GO-2026-4352 OpenTofu has High CPU usage in "tofu init" with maliciously-crafted module packages in .zip format in github.com/opentofu/opentofu

OpenTofu has High CPU usage in "tofu init" with maliciously-crafted module packages in .zip format in github.com/opentofu/opentofu...

OpenTofu has High CPU usage in "tofu init" with maliciously-crafted module packages in .zip format

Impact Unauthenticated denial of service. Summary When installing module packages from attacker-controlled sources, tofu init may cause high CPU usage when encountering maliciously-crafted .zip archives for either provider or module distribution packages. Those who depend on modules or providers...

GHSA-R92C-9C7F-3PJ8 OpenTofu has High CPU usage in "tofu init" with maliciously-crafted module packages in .zip format

Impact Unauthenticated denial of service. Summary When installing module packages from attacker-controlled sources, tofu init may cause high CPU usage when encountering maliciously-crafted .zip archives for either provider or module distribution packages. Those who depend on modules or providers...

PT-2026-73164

Name of the Vulnerable Software and Affected Versions OpenTofu versions prior to 1.11.4 Description A denial of service issue exists in the tofu init command when processing maliciously-crafted .zip archives used for provider or module packages. An attacker can control the content of the .zip...

GO-2025-4101 OpenTofu affected denials of service in "tofu init" with maliciously-crafted module package responses in github.com/opentofu/opentofu

OpenTofu affected denials of service in "tofu init" with maliciously-crafted module package responses in github.com/opentofu/opentofu...

OpenTofu affected denials of service in "tofu init" with maliciously-crafted module package responses

Impact Unauthenticated denial of service. Summary When installing module packages from attacker-controlled sources, tofu init may use unbounded memory, cause high CPU usage, or crash when encountering maliciously-crafted TLS certificate chains or tar archives. Those who depend on modules or...