# CVE-2026-5807: Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Operations

> CVE-2026-5807: Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Operations. CVSS 7.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-5807
Last updated: 2026-07-15T01:16:45Z

- Published: 2026-04-17 03:22 UTC · Updated: 2026-07-15 01:16 UTC · Assigner: HashiCorp
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS: 0.72%, 54th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-770

## Description

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.

## Affected vendors and products

- HashiCorp: Vault
- HashiCorp: Vault Enterprise
- Red Hat: Red Hat OpenShift Container Platform 4
- Red Hat: Red Hat Openshift Data Foundation 4

## Tracked companies

- [HashiCorp](https://rewindex.com/company/hashicorp.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-5807)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-5807)
- [https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345](https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-5807 · Markdown: https://rewindex.com/cve/CVE-2026-5807.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-5807 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:10:02.249Z