HashiCorp vault-action (aka Vault GitHub Action) before 2.2.0 allows attackers to obtain sensitive information from log files because a multi-line secret was not correctly registered with GitHub Actions for log masking.
https://github.com/hashicorp/vault-action/pull/208
https://github.com/hashicorp/vault-action/blob/master/CHANGELOG.md
https://github.com/hashicorp/vault-action/issues/205
https://discuss.hashicorp.com/t/hcsec-2021-13-vault-github-action-did-not-correctly-mask-multi-line-secrets-in-output/24128
Source: Mitre, NVD
Published: 2021-05-07
Updated: 2026-06-17
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity: High
EPSS: 0.00346