How severe is CVE-2021-40862?

CVE-2021-40862 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-40862 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40862?

CVE-2021-40862 affects Hashicorp Terraform Enterprise. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-40862?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-40862 published?

CVE-2021-40862 was published on 2021-09-15 and last updated on 2026-06-17.

CVE-2021-40862

CVE-2021-40862 is a high-severity vulnerability in Hashicorp Terraform Enterprise with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Hashicorp Terraform Enterprise
Published: 2021-09-15
Last modified: 2026-06-17

Description

HashiCorp Terraform Enterprise up to v202108-1 contained an API endpoint that erroneously disclosed a sensitive URL to authenticated parties, which could be used for privilege escalation or unauthorized modification of a Terraform configuration. Fixed in v202109-1.

Frequently asked questions

What is CVE-2021-40862?: HashiCorp Terraform Enterprise up to v202108-1 contained an API endpoint that erroneously disclosed a sensitive URL to authenticated parties, which could be used for privilege escalation or unauthorized modification of a Terraform configuration. Fixed in v202109-1.
How severe is CVE-2021-40862?: CVE-2021-40862 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-40862 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40862?: CVE-2021-40862 affects Hashicorp Terraform Enterprise. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-40862?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-40862 published?: CVE-2021-40862 was published on 2021-09-15 and last updated on 2026-06-17.

References

https://discuss.hashicorp.com/t/hcsec-2021-25-terraform-enterprise-configuration-versions-api-discloses-sensitive-url/29508

Affected products (1)

cpe:2.3:a:hashicorp:terraform_enterprise:*:*:*:*:*:*:*:*

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