Medium severity · published Mar 11, 2026
CVE-2026-2808
Consul vulnerable to arbitrary file reads through the vault kubernetes authentication provider
6.8
CVSS
0.5%
EPSS
No
On KEV
Description
HashiCorp Consul and Consul Enterprise 1.18.20 up to 1.21.10 and 1.22.4 are vulnerable to arbitrary file read when configured with Kubernetes authentication. This vulnerability, CVE-2026-2808, is fixed in Consul 1.18.21, 1.21.11 and 1.22.5.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
Consul · HashiCorp
before 1.22.5 · source: vendor
CE
Consul Enterprise · HashiCorp
before 1.22.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2808
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2808
discuss.hashicorp.com
https://discuss.hashicorp.com/t/hcsec-2026-02-consul-vulnerable-to-arbitrary-file-reads-through-the-vault-kubernetes-authentication-provider/77232
More from Consul
8.8
CVE-2026-105608
Consul vulnerable to an authorization bypass in service mesh registration
8.8
CVE-2021-41805
HashiCorp Consul Enterprise before 1.8.17, 1.9.x before 1.9.11, and 1.10.x before 1.10.4 has Incorrect Access Control
8.8
CVE-2021-37219
HashiCorp Consul and Consul Enterprise 1.10.1 Raft RPC layer allows non-server agents with a valid certificate signed by the same CA to access server-only functionality, enabling…
8.6
CVE-2021-3121
An issue was discovered in GoGo Protobuf before 1.3.2
8.3
CVE-2026-87090
Consul vulnerable to an authorization bypass in the catalog node-write path