CVE-2026-3605
Vault KVv2 Metadata and Secret Deletion Policy Bypass Denial-of-Service
Description
An authenticated user with access to a kvv2 path through a policy containing a glob may be able to delete secrets they were not authorized to read or write, resulting in denial-of-service. This vulnerability did not allow a malicious user to delete secrets across namespaces, nor read any secret data. Fxed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0, 1.21.5, 1.20.10, and 1.19.16.
INFO
Published Date :
April 17, 2026, 4:16 a.m.
Last Modified :
April 25, 2026, 6:08 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 67fedba0-ff2e-4543-ba5b-aa93e87718cc | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Vault Community Edition to 2.0.0 or later.
- Update Vault Enterprise to 2.0.0, 1.21.5, 1.20.10, or 1.19.16.
- Review and restrict policy glob usage for KVv2 paths.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-3605.
| URL | Resource |
|---|---|
| https://discuss.hashicorp.com/t/hcsec-2026-05-vault-kvv2-metadata-and-secret-deletion-policy-bypass-denial-of-service/77342 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-3605 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-3605
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-3605 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-3605 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 25, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* versions from (including) 1.20.0 up to (excluding) 1.20.10 *cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* versions from (including) 1.21.0 up to (excluding) 1.21.5 *cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:* versions from (including) 0.10.0 up to (excluding) 2.0.0 *cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* versions from (including) 0.10.0 up to (excluding) 1.19.16 Added Reference Type HashiCorp Inc.: https://discuss.hashicorp.com/t/hcsec-2026-05-vault-kvv2-metadata-and-secret-deletion-policy-bypass-denial-of-service/77342 Types: Vendor Advisory -
New CVE Received by [email protected]
Apr. 17, 2026
Action Type Old Value New Value Added Description An authenticated user with access to a kvv2 path through a policy containing a glob may be able to delete secrets they were not authorized to read or write, resulting in denial-of-service. This vulnerability did not allow a malicious user to delete secrets across namespaces, nor read any secret data. Fxed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0, 1.21.5, 1.20.10, and 1.19.16. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Added CWE CWE-288 Added Reference https://discuss.hashicorp.com/t/hcsec-2026-05-vault-kvv2-metadata-and-secret-deletion-policy-bypass-denial-of-service/77342