What’s Vulnerable › Vulnerabilities

CVE-2018-19786

• Severity: high (CVSS 8.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-12-05 · updated 2026-06-17
• Weakness: CWE-532

Description

HashiCorp Vault before 1.0.0 writes the master key to the server log in certain unusual or misconfigured scenarios in which incorrect data comes from the autoseal mechanism without an error being reported.

Affected products

• HashiCorp Vault: before 1.0.0 — fixed in 1.0.0

How to fix

Upgrade to a fixed version: HashiCorp Vault 1.0.0. Check the vendor advisory for mitigations.

References

• https://github.com/hashicorp/vault/blob/master/CHANGELOG.md#100-december-3rd-2018
• https://github.com/hashicorp/vault/blob/master/CHANGELOG.md#100-december-3rd-2018

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