title: Vault May be Vulnerable to a Denial of Service Through Memory Exhaustion When Handling Large HTTP Requests
description: HashiCorp Vault and Vault Enterprise 1.12.0 and newer are vulnerable to a denial of service through memory exhaustion of the host when handling large unauthenticated and authenticated HTTP requests from a client. Vault will attempt to map the request to memory, resulting in the exhaustion of available memory on the host, which may cause Vault to crash.
Fixed in Vault 1.15.4, 1.14.8, 1.13.12.
problem types: CWE-770 Allocation of Resources Without Limits or Throttling
affected:
{
vendor: HashiCorp
product: Vault
platforms: [Windows, MacOS, Linux, x86, ARM, 64 bit, 32 bit]
repo: https://github.com/hashicorp/vault
versions:
status: affected, version: 1.12.0, lessThan: 1.15.4, changes: [at: 1.14.8, status: unaffected], versionType: semver
defaultStatus: unaffected
}
{
vendor: HashiCorp
product: Vault Enterprise
platforms: [Windows, MacOS, Linux, x86, ARM, 64 bit, 32 bit]
versions:
status: affected, version: 1.12.0, lessThan: 1.15.4, changes: [at: 1.14.8, status: unaffected], versionType: semver
defaultStatus: unaffected
}
metrics:
format: CVSS
scenarios: GENERAL
cvssV3_1: [
version: 3.1
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
]