CVE-2026-5807Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Operations
Updated under an hour ago ()
Does this affect you?
It affects HashiCorp Vault and 3 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- HashiCorp
- NVD analysis
- Modified
- Record last updated
- Jul 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
HashiCorp Vault hashicorp:vault (from the name) | before 2.0.0 | CNA record |
HashiCorp Vault Enterprise hashicorp:vault_enterprise (from the name) | before 2.0.0. | CNA record |
Red Hat Red Hat OpenShift Container Platform 4 redhat:openshift | 4 | CISA ADP |
Red Hat Red Hat Openshift Data Foundation 4 redhat:openshift_data_foundation | 4 | CISA ADP |
hashicorp vault hashicorp:vault | before 2.0.0; before 2.0.0 | NVD |
References
- https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-5807
- https://bugzilla.redhat.com/show_bug.cgi?id=2459109
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5807.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.