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CVE-2020-7956

24
FAUCET Score

CVE-2020-7956 describes a critical privilege escalation vulnerability in HashiCorp Nomad and Nomad Enterprise versions up to 0.10.2, stemming from improper validation of role/region in TLS certificates used for mTLS RPC. With a CVSS score of 9.8, this network-exploitable flaw allows an unauthenticated attacker to achieve high impact on confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.10.3CPE matchmatch criteria
cpe:2.3:a:hashicorp:nomad:*:*:*:*:*:*:*:*
< 0.10.3CPE matchmatch criteria
cpe:2.3:a:hashicorp:nomad:*:*:*:*:enterprise:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.98%
Probability of exploitation in next 30 days
EPSS Percentile
58.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0098 is in the 44th percentile among its peer group of 36,897 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

gopatch availablevia ghsa
Product: github.com/hashicorp/nomadFixed in: 0.10.3

Vendor Advisories (1)

goGHSA-cj2h-ww36-v932high

Improper Certificate Validation in HashiCorp Nomad

May 18, 2021

References

github.com / hashicorp/nomad/issues/7003
Third Party Advisory
hashicorp.com / blog/category/nomad
Vendor Advisory