Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 5.3 | Medium | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.0091, the 60th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:45 UTC First seen by agentprime
- 31 Oct 2026, 14:45 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-6239-28c2-9mrm
- OSV: GHSA-6239-28c2-9mrm
- nvd.nist.gov/vuln/detail/CVE-2021-38554
- discuss.hashicorp.com/t/hcsec-2021-19-vault-s-ui-cached-user-viewed-secrets-between-shared-browser-sessions/28166
- github.com/hashicorp/vault
- github.com/hashicorp/vault/releases/tag/v1.6.6
- github.com/hashicorp/vault/releases/tag/v1.7.4
- security.gentoo.org/glsa/202207-01