Security Digest · Vulnerability record
CVE-2020-10661: HashiCorp Vault Improper Privilege Management
HashiCorp Vault and Vault Enterprise versions 0.11.0 through 1.3.3 may, under certain circumstances, have existing nested-path policies grant access to Namespaces created after-the-fact.
CVSS 9.3 Critical EPSS 1.1% · p66
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- No confirmed exploitation. It is not in CISA’s KEV catalog. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 1.1%, percentile 66: FIRST’s model estimates a 1.1% chance of exploitation activity in the next 30 days, higher than 66% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes
github.com/hashicorp/vault(Go) >= 0.11.0, < 1.3.4, fixed in 1.3.4. Check your lockfile, including transitive dependencies.
What it is
HashiCorp Vault and Vault Enterprise versions 0.11.0 through 1.3.3 may, under certain circumstances, have existing nested-path policies grant access to Namespaces created after-the-fact. Fixed in 1.3.4.
From the GitHub advisory
HashiCorp Vault and Vault Enterprise versions 0.11.0 through 1.3.3 may, under certain circumstances, have existing nested-path policies grant access to Namespaces created after-the-fact. Fixed in 1.3.4.
Weakness type: CWE-269.
Product: github.com/hashicorp/vault (Go) · Assigned by: mitre · Published: 2020-03-23
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| Go | github.com/hashicorp/vault | >= 0.11.0, < 1.3.4 | 1.3.4 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| n/a | n/a | see vendor advisory |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Attack requirements: none
- Privileges required: none (no login)
- User interaction: none
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- FIRST EPSS (model of 2026-10-21): 1.12% probability of exploitation activity in the next 30 days; percentile 66.
Timeline
- — CVE record published by mitre
- — GitHub-reviewed advisory GHSA-j6vv-vv26-rh7c published (critical)
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- GitHub Advisory GHSA-j6vv-vv26-rh7c github.com
- CVE.org record CVE-2020-10661 cve.org
- NVD entry CVE-2020-10661 nvd.nist.gov
Other references from the CVE record and advisory
- hashicorp.com hashicorp.com
- github.com github.com
- github.com github.com