Low [CVE-2026-74797] Denial of Service via malicious zip archives
This low-severity Red Hat Linux advisory covers CVE-2026-74797.
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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. A flaw was found in OpenTofu.
Exploitation requires an attacker to provide a malicious archive, necessitating user interaction or a compromised dependency supply chain, which limits the attack surface in Red Hat environments where `tofu init` is typically executed in controlled development or CI/CD pipelines.
Red Hat severity: Low — CVSS 3.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L). Weakness: CWE-400.
Red Hat lists Red Hat Hardened Images as not affected.
- < 1.11.4
Official advisory · high-confidence parse· fetched 18 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 18 days ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · high-confidence parse· fetched 18 days ago·verify at source
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