CVE-2020-10661Network attack vector

Unauthorized namespace access via preexisting nested-path policies

Published Mar 23, 2020 · Updated Aug 4, 2024

Improper privilege management in HashiCorp Vault and Vault Enterprise 0.11.0 through 1.3.3 allows attackers to access new Namespaces. Policy evaluation applies an existing nested-path rule to a Namespace path created after that rule, although HashiCorp has not identified the responsible function. Exposure requires an affected deployment using Namespaces and a preexisting policy whose nested path reaches the subsequently created Namespace.

CVSS severity9.1
Critical
EPSS probability1.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper privilege management in HashiCorp Vault and Vault Enterprise 0.11.0 through 1.3.3 allows attackers to access new Namespaces. Policy evaluation applies an existing nested-path rule to a Namespace path created after that rule, although HashiCorp has not identified the responsible function. Exposure requires an affected deployment using Namespaces and a preexisting policy whose nested path reaches the subsequently created Namespace.

The record

CVE
CVE-2020-10661
Published
Mar 23, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-269, CAPEC-122
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 23, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.3GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
5.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:N
9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
CAPEC-122Privilege Abuse

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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