CVE-2026-5807

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.

Score

CVSS 3.1 7.5 High

Status

Modified - security@hashicorp.com

Published

2026-04-17

Last modified

2026-10-26

Weaknesses

CWE-770

Affected products

• Vault (Hashicorp)
• Vault Enterprise (Hashicorp)
• Openshift (Redhat)
• Openshift Data Foundation (Redhat)

References

• https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-gene…
• 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