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CVE-2021-41805

47
FAUCET Score

CVE-2021-41805 is an Incorrect Access Control vulnerability affecting HashiCorp Consul Enterprise versions prior to 1.8.17, 1.9.11, and 1.10.4. It allows an attacker with a default operator:write ACL token in one namespace to escalate privileges in a different namespace. This vulnerability has a CVSS score of 8.8 (HIGH), indicating a network-based attack with low complexity that can lead to high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.7.0, < 1.8.17CPE matchmatch criteria
cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*
>= 1.9.0, < 1.9.11CPE matchmatch criteria
cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*
>= 1.10.0, < 1.10.4CPE matchmatch criteria
cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
34.79%
Probability of exploitation in next 30 days
EPSS Percentile
98.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.3479 is in the 98th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

discuss.hashicorp.com / t/hcsec-2021-29-consul-enterprise-namespace-default-acls-allow-privilege-escalation/31871
Vendor Advisory
security.netapp.com / advisory/ntap-20211229-0007
Third Party Advisory
hashicorp.com / blog/category/consul
ProductVendor Advisory