CVE-2021-28156

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

2.29% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 82.9% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-04-20 15:02Z5 YR AGO

Last updated

2024-08-03 21:40Z2 YR AGO

Reserved

2021-03-11

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-639Authorization Bypass Through User-Controlled KeyBase

Data version

5.1

Document digest

3918ff16af3786c8066570669a2c892f65ab2efac1085b3ae0822a6edf68cc93

• www.hashicorp.comhttps://www.hashicorp.com/blog/category/consulx_refsource_MISC
• discuss.hashicorp.comhttps://discuss.hashicorp.com/t/hcsec-2021-08-consul-enterprise-audit-log-bypass-for-http-events/23369x_refsource_MISC
• security.gentoo.orgGLSA-202208-09https://security.gentoo.org/glsa/202208-09vendor-advisoryx_refsource_GENTOO