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CVE-2020-35177

Enumeration of users in HashiCorp Vault

5.3 MediumFix available

HashiCorp Vault and Vault Enterprise 1.4.1 and newer allowed the enumeration of users via the LDAP auth method. Fixed in 1.5.6 and 1.6.1.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
None

Exploit likelihood

1.31%Up 0.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 5.3

HashiCorp Vault and Vault Enterprise 1.4.1 and newer allowed the enumeration of users via the LDAP auth method. Fixed in 1.5.6 and 1.6.1.

Record
CVE-2020-35177
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-209
Updated
2026-11-02
CVE List No score

HashiCorp Vault and Vault Enterprise 1.4.1 and newer allowed the enumeration of users via the LDAP auth method. Fixed in 1.5.6 and 1.6.1.

Record
CVE-2020-35177
Updated
2026-11-02
EUVDEUVD-2024-0419 No score

HashiCorp Vault and Vault Enterprise 1.4.1 and newer allowed the enumeration of users via the LDAP auth method. Fixed in 1.5.6 and 1.6.1.

Record
EUVD-2024-0419
Updated
2026-11-03
GitHub AdvisoriesGHSA-rpgp-9hmg-j25x 5.4

Enumeration of users in HashiCorp Vault

HashiCorp Vault and Vault Enterprise allowed the enumeration of users via the LDAP auth method. Fixed in 1.5.6 and 1.6.1.

Record
GHSA-rpgp-9hmg-j25x
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:R
Weakness
CWE-200
Updated
2026-11-02
OSVALPINE-CVE-2020-35177 5.3

HashiCorp Vault and Vault Enterprise 1.4.1 and newer allowed the enumeration of users via the LDAP auth method. Fixed in 1.5.6 and 1.6.1.

Record
ALPINE-CVE-2020-35177
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-03
OSV 5.3

HashiCorp Vault and Vault Enterprise 1.4.1 and newer allowed the enumeration of users via the LDAP auth method. Fixed in 1.5.6 and 1.6.1.

Record
CVE-2020-35177
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
OSVGHSA-rpgp-9hmg-j25x 6.5

Enumeration of users in HashiCorp Vault

HashiCorp Vault and Vault Enterprise allowed the enumeration of users via the LDAP auth method. Fixed in 1.5.6 and 1.6.1.

Record
GHSA-rpgp-9hmg-j25x
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:R
Weakness
CWE-200
Updated
2026-11-02
OSVBIT-vault-2020-35177 No score

HashiCorp Vault and Vault Enterprise 1.4.1 and newer allowed the enumeration of users via the LDAP auth method. Fixed in 1.5.6 and 1.6.1.

Record
BIT-vault-2020-35177
Updated
2026-11-02
OSVGO-2024-2508 No score

Enumeration of users in HashiCorp Vault in github.com/hashicorp/vault

Enumeration of users in HashiCorp Vault in github.com/hashicorp/vault

Record
GO-2024-2508
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
github.com/hashicorp/vault
Go
 1.5.0 up to 1.5.6
1.5.6
github.com/hashicorp/vault
Go
 1.6.0 up to 1.6.1
1.6.1
vault
Alpine:v3.13
 1.5.0 up to 1.5.6-r0
1.5.6-r0
vault
Alpine:v3.14
 1.5.0 up to 1.5.6-r0
1.5.6-r0
vault
Alpine:v3.15
 1.5.0 up to 1.5.6-r0
1.5.6-r0
vault
Alpine:v3.16
 1.5.0 up to 1.5.6-r0
1.5.6-r0
vault
Alpine:v3.17
 1.5.0 up to 1.5.6-r0
1.5.6-r0
vault
Alpine:v3.18
 1.5.0 up to 1.5.6-r0
1.5.6-r0
vault
Bitnami
 1.5.0 up to 1.5.6, 1.6.0 up to 1.6.1
1.5.61.6.1
github.com/hashicorp/vault
Go
 1.5.0 up to 1.5.6, 1.6.0 up to 1.6.1
1.5.61.6.1

History

History
RecordedChangedSources
affected, aliases, referencesOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-35177 is a medium vulnerability (CVSS 5.3) in Hashicorp Vault, published December 17, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.31%, the 70th percentile. Fixed in github.com/hashicorp/vault 1.5.6.

References

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