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CVE-2025-4656

Vault Vulnerable to Recovery Key Cancellation Denial of Service

Description

Vault Community and Vault Enterprise rekey and recovery key operations can lead to a denial of service due to uncontrolled cancellation by a Vault operator. This vulnerability (CVE-2025-4656) has been remediated in Vault Community Edition 1.20.0 and Vault Enterprise 1.20.0, 1.19.6, 1.18.11, 1.17.17, and 1.16.22.

Timeline

  1. ID reserved

    By HashiCorp

  2. · 43 days later

    Published

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2025-4656, by who scored it
Scored byCVSSScoreVector
HashiCorpCNA (assigner)3.1Low3.1CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
NVDNVD · Analyzed3.1Low3.1CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
EPSS (exploitation in 30 days)
0.28% · top 79% of all CVEs (10 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.1.

Affected products

Affected packages

From reviewed advisories of the GitHub Advisory Database.

References

1

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2025-4656 badge
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Record last updated .