Answer in brief
CVE-2021-38554 records a Medium severity (CVSS 5.3) vulnerability in Improper Removal of Sensitive Information Before Storage or Transfer in HashiCorp Vault. The current sources do not mark it as known exploited. The current feed maps github.com/hashicorp/vault (go), github.com/hashicorp/vault (go). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps github.com/hashicorp/vault (go), github.com/hashicorp/vault (go). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| github.com/hashicorp/vaultgo | >=0 <1.6.6 | 1.6.6 |
| github.com/hashicorp/vaultgo | >=1.7.0 <1.7.4 | 1.7.4 |
Published upstream
Aug 30, 2021
Evidence: source:osv:source_dates:source-dates:recordSource modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:recordFirst seen by HOL
Sep 10, 2026
HashiCorp Vault and Vault Enterprise’s UI erroneously cached and exposed user-viewed secrets between sessions in a single shared browser. Fixed in 1.8.0 and pending 1.7.4 / 1.6.6 releases.
Quoted source text, attributed separately from HOL analysis.