VulnerabilityModified
CVE-2021-28156
HashiCorp Consul Enterprise version 1.8.0 up to 1.9.4 audit log can be bypassed by specifically crafted HTTP events.
HIGH 7.5EPSS 2.29%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
HashiCorp Consul Enterprise version 1.8.0 up to 1.9.4 audit log can be bypassed by specifically crafted HTTP events. Fixed in 1.9.5, and 1.8.10.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 2.29% probability · 83th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- hashicorp/consul
- Source
- cve@mitre.org
EPSS 2.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://discuss.hashicorp.com/t/hcsec-2021-08-consul-enterprise-audit-log-bypass-for-http-events/23369Vendor Advisory
- https://security.gentoo.org/glsa/202208-09Third Party Advisory
- https://www.hashicorp.com/blog/category/consulVendor Advisory
- https://discuss.hashicorp.com/t/hcsec-2021-08-consul-enterprise-audit-log-bypass-for-http-events/23369Vendor Advisory
- https://security.gentoo.org/glsa/202208-09Third Party Advisory
- https://www.hashicorp.com/blog/category/consulVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.