How severe is CVE-2020-10660?

CVE-2020-10660 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2020-10660 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-10660?

CVE-2020-10660 primarily affects Hashicorp Vault. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-10660?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-10660 published?

CVE-2020-10660 was published on 2020-03-23 and last updated on 2026-06-17.

CVE-2020-10660

CVE-2020-10660 is a medium-severity vulnerability in Hashicorp Vault with a CVSS 3.x base score of 5.3. 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-276.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.3
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Hashicorp Vault
Published: 2020-03-23
Last modified: 2026-06-17

Description

HashiCorp Vault and Vault Enterprise versions 0.9.0 through 1.3.3 may, under certain circumstances, have an Entity's Group membership inadvertently include Groups the Entity no longer has permissions to. Fixed in 1.3.4.

Frequently asked questions

What is CVE-2020-10660?: HashiCorp Vault and Vault Enterprise versions 0.9.0 through 1.3.3 may, under certain circumstances, have an Entity's Group membership inadvertently include Groups the Entity no longer has permissions to. Fixed in 1.3.4.
How severe is CVE-2020-10660?: CVE-2020-10660 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2020-10660 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-10660?: CVE-2020-10660 primarily affects Hashicorp Vault. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-10660?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-10660 published?: CVE-2020-10660 was published on 2020-03-23 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*
cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*

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