CVE-2020-16250
Authentication Bypass by Spoofing and Insufficient Verification of Data Authenticity in Hashicorp Vault
HashiCorp Vault and Vault Enterprise versions 0.7.1 and newer, when configured with the AWS IAM auth method, may be vulnerable to authentication bypass. Fixed in 1.2.5, 1.3.8, 1.4.4, and 1.5.1..
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
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
HashiCorp Vault and Vault Enterprise versions 0.7.1 and newer, when configured with the AWS IAM auth method, may be vulnerable to authentication bypass. Fixed in 1.2.5, 1.3.8, 1.4.4, and 1.5.1..
- Record
CVE-2020-16250- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-290, CWE-345
- Updated
- 2026-11-02
CVE List No score
HashiCorp Vault and Vault Enterprise versions 0.7.1 and newer, when configured with the AWS IAM auth method, may be vulnerable to authentication bypass. Fixed in 1.2.5, 1.3.8, 1.4.4, and 1.5.1..
- Record
CVE-2020-16250- Updated
- 2026-11-02
EUVDEUVD-2021-1705 No score
HashiCorp Vault and Vault Enterprise versions 0.7.1 and newer, when configured with the AWS IAM auth method, may be vulnerable to authentication bypass. Fixed in 1.2.5, 1.3.8, 1.4.4, and 1.5.1..
- Record
EUVD-2021-1705- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fp52-qw33-mfmw
Authentication Bypass by Spoofing and Insufficient Verification of Data Authenticity in Hashicorp Vault
HashiCorp Vault and Vault Enterprise versions 0.7.1 and newer, when configured with the AWS IAM auth method, may be vulnerable to authentication bypass. Fixed in 1.2.5, 1.3.8, 1.4.4, and 1.5.1..
- Record
GHSA-fp52-qw33-mfmw- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N - Weakness
- CWE-290, CWE-345
- Updated
- 2026-11-02
OSVALPINE-CVE-2020-16250
HashiCorp Vault and Vault Enterprise versions 0.7.1 and newer, when configured with the AWS IAM auth method, may be vulnerable to authentication bypass. Fixed in 1.2.5, 1.3.8, 1.4.4, and 1.5.1..
- Record
ALPINE-CVE-2020-16250- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N - Updated
- 2026-11-03
OSV
HashiCorp Vault and Vault Enterprise versions 0.7.1 and newer, when configured with the AWS IAM auth method, may be vulnerable to authentication bypass. Fixed in 1.2.5, 1.3.8, 1.4.4, and 1.5.1..
- Record
CVE-2020-16250- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-fp52-qw33-mfmw
Authentication Bypass by Spoofing and Insufficient Verification of Data Authenticity in Hashicorp Vault
HashiCorp Vault and Vault Enterprise versions 0.7.1 and newer, when configured with the AWS IAM auth method, may be vulnerable to authentication bypass. Fixed in 1.2.5, 1.3.8, 1.4.4, and 1.5.1..
- Record
GHSA-fp52-qw33-mfmw- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N - Weakness
- CWE-290, CWE-345
- Updated
- 2026-11-02
OSVBIT-vault-2020-16250 No score
HashiCorp Vault and Vault Enterprise versions 0.7.1 and newer, when configured with the AWS IAM auth method, may be vulnerable to authentication bypass. Fixed in 1.2.5, 1.3.8, 1.4.4, and 1.5.1..
- Record
BIT-vault-2020-16250- Updated
- 2026-11-02
OSVGO-2022-0825 No score
Authentication Bypass by Spoofing and Insufficient Verification of Data Authenticity in Hashicorp Vault in github.com/hashicorp/vault
Authentication Bypass by Spoofing and Insufficient Verification of Data Authenticity in Hashicorp Vault in github.com/hashicorp/vault
- Record
GO-2022-0825- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/hashicorp/vaultGo |
1.5.0 up to 1.5.1 | 1.5.1 |
github.com/hashicorp/vaultGo |
0.8.1 up to 1.2.5 | 1.2.5 |
github.com/hashicorp/vaultGo |
1.3.0 up to 1.3.8 | 1.3.8 |
github.com/hashicorp/vaultGo |
1.4.0 up to 1.4.4 | 1.4.4 |
vaultAlpine:v3.12 |
0.7.1 up to 1.4.7-r0 | 1.4.7-r0 |
vaultAlpine:v3.13 |
0.7.1 up to 1.5.4-r0 | 1.5.4-r0 |
vaultAlpine:v3.14 |
0.7.1 up to 1.5.4-r0 | 1.5.4-r0 |
vaultAlpine:v3.15 |
0.7.1 up to 1.5.4-r0 | 1.5.4-r0 |
vaultAlpine:v3.16 |
0.7.1 up to 1.5.4-r0 | 1.5.4-r0 |
vaultAlpine:v3.17 |
0.7.1 up to 1.5.4-r0 | 1.5.4-r0 |
vaultAlpine:v3.18 |
0.7.1 up to 1.5.4-r0 | 1.5.4-r0 |
vaultBitnami |
0.7.1 up to 1.2.5, 1.3.0 up to 1.3.8, 1.4.0 up to 1.4.4, 1.5.0 up to 1.5.1 | 1.2.51.3.81.4.41.5.1 |
github.com/hashicorp/vaultGo |
0.8.1 up to 1.2.5, 1.3.0 up to 1.3.8, 1.4.0 up to 1.4.4, 1.5.0 up to 1.5.1 | 1.2.51.3.81.4.41.5.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, references | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-16250 is a high vulnerability (CVSS 8.2) in Hashicorp Vault, published August 26, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.51%, the 74th percentile. Fixed in github.com/hashicorp/vault 1.5.1.
References
hashicorp.com/blog/category/vault
github.com/hashicorp/vault/blob/master/CHANGELOG.md
packetstormsecurity.com/files/159478/Hashicorp-Vault-AWS-IAM-Integration-Authentication-Bypass.html
nvd.nist.gov/vuln/detail/CVE-2020-16250
security.alpinelinux.org/vuln/CVE-2020-16250