Staging Environment: Content and features may be unstable or change without notice.
Search for vulnerabilities
Vulnerability details: VCID-4795-vxdy-w7g3
Vulnerability ID VCID-4795-vxdy-w7g3
Aliases CVE-2021-43998
GHSA-pfmw-vj74-ph8g
Summary HashiCorp Vault Incorrect Permission Assignment for Critical Resource HashiCorp Vault and Vault Enterprise 0.11.0 up to 1.7.5 and 1.8.4 templated ACL policies would always match the first-created entity alias if multiple entity aliases exist for a specified entity and mount combination, potentially resulting in incorrect policy enforcement. Fixed in Vault and Vault Enterprise 1.7.6, 1.8.5, and 1.9.0.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-732 Incorrect Permission Assignment for Critical Resource
System Score Found at
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-43998.json
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
epss 0.00281 https://api.first.org/data/v1/epss?cve=CVE-2021-43998
cvssv3.1 9.1 https://discuss.hashicorp.com/t/hcsec-2021-30-vaults-templated-acl-policies-matched-first-created-alias-per-entity-and-auth-backend/32132
generic_textual CRITICAL https://discuss.hashicorp.com/t/hcsec-2021-30-vaults-templated-acl-policies-matched-first-created-alias-per-entity-and-auth-backend/32132
cvssv3.1 9.1 https://github.com/hashicorp/vault
generic_textual CRITICAL https://github.com/hashicorp/vault
cvssv3.1 9.1 https://nvd.nist.gov/vuln/detail/CVE-2021-43998
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2021-43998
archlinux Medium https://security.archlinux.org/AVG-2294
cvssv3.1 9.1 https://security.gentoo.org/glsa/202207-01
generic_textual CRITICAL https://security.gentoo.org/glsa/202207-01
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-43998.json
https://api.first.org/data/v1/epss?cve=CVE-2021-43998
https://discuss.hashicorp.com/t/hcsec-2021-30-vaults-templated-acl-policies-matched-first-created-alias-per-entity-and-auth-backend/32132
https://github.com/hashicorp/vault
https://nvd.nist.gov/vuln/detail/CVE-2021-43998
https://security.gentoo.org/glsa/202207-01
2028193 https://bugzilla.redhat.com/show_bug.cgi?id=2028193
AVG-2294 https://security.archlinux.org/AVG-2294
RHSA-2023:2138 https://access.redhat.com/errata/RHSA-2023:2138
RHSA-2023:3742 https://access.redhat.com/errata/RHSA-2023:3742
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-43998.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://discuss.hashicorp.com/t/hcsec-2021-30-vaults-templated-acl-policies-matched-first-created-alias-per-entity-and-auth-backend/32132
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://github.com/hashicorp/vault
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-43998
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://security.gentoo.org/glsa/202207-01
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.51382
EPSS Score 0.00281
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:01:10.586952+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/12/GHSA-pfmw-vj74-ph8g/GHSA-pfmw-vj74-ph8g.json 38.0.0