01 Record
CVE-2026-5807
Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Operations
HighPUBLISHEDCNA: HashiCorp
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
02 Description
Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Operations
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.71% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 53.5% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-26.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-04-17 03:22Z6 MO AGO
- Last updated
- 2026-07-15 00:41Z3 MO AGO
- Reserved
- 2026-04-08
- Assigning CNA
- HashiCorp
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-770Allocation of Resources Without Limits or ThrottlingBase
- Data version
- 5.2
- Document digest
- 8eec779ff8c7206fb6a1a26b92e82e9e9a56d08d4583745f002891c86b9ac592
05 Affected products
VendorProductVersionsPlatforms
06 References
- discuss.hashicorp.comhttps://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-5807
- bugzilla.redhat.comRHBZ#2459109https://bugzilla.redhat.com/show_bug.cgi?id=2459109
- security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5807.json