CVE-2023-3775Network attack vector

Denial of service via cross-namespace policy application

Published Sep 28, 2023 · Updated Sep 26, 2024

Denial of service in HashiCorp Vault Enterprise before 1.13.8 and 1.14.0 through 1.14.3 allows remote authenticated users to interrupt service. The policy engine fails to confine an operator-created Sentinel RGP to its namespace hierarchy and applies it to requests in an unrelated, non-descendant namespace. Exploitation requires operator privileges and a configured RGP; affected requests can be denied outside the policy's intended scope.

CVSS severity4.9
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in HashiCorp Vault Enterprise before 1.13.8 and 1.14.0 through 1.14.3 allows remote authenticated users to interrupt service. The policy engine fails to confine an operator-created Sentinel RGP to its namespace hierarchy and applies it to requests in an unrelated, non-descendant namespace. Exploitation requires operator privileges and a configured RGP; affected requests can be denied outside the policy's intended scope.

The record

CVE
CVE-2023-3775
Published
Sep 28, 2023
Updated
Sep 26, 2024
Vendor
HashiCorp
Product
Vault Enterprise
Classifications
CWE-266, T1499.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.11.0 <1.13.0
  2. Affected versionversion=1.13.0 <1.13.8
  3. Affected versionversion=1.14.0 <1.14.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

HashiCorp · Vault Enterpriseversion=0.11.0 <1.13.0; version=1.13.0 <1.13.8; version=1.14.0 <1.14.4

Published CVSS scores

4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-266Incorrect Privilege Assignment
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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