Vault is vulnerable to a denial-of-service condition where an unauthenticated attacker can repeatedly initiate or cancel root token generation or rekey operations, occupying the single in-progress operation slot. This prevents legitimate operators from completing these workflows. This vulnerability, CVE-2026-5807, is fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0.
{
"cwe_ids": [
"CWE-770"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5807.json",
"cna_assigner": "HashiCorp"
}{
"cpe": [
"cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*",
"cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*"
],
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "2.0.0"
},
{
"fixed": "2.0.0."
}
],
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
]
}